📘 ❞ Preview Javascript Tutorial ❝ كتاب
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█ _ 0 حصريا كتاب Preview Javascript Tutorial 2024 Tutorial: Tutorial Table of Contents About the Audience i Prerequisites i Copyright and Disclaimer i Table Contents ii PART 1: JAVASCRIPT BASICS 1 1 – Overview 2 What is JavaScript? 2 Client Side JavaScript 2 Advantages 3 Limitations 3 JavaScript Development Tools 3 Where Today? 4 2 Syntax 5 Your First Code 5 Whitespace Line Breaks 6 Semicolons are Optional 6 Case Sensitivity 7 Comments in 7 3 Enabling 9 JavaScript Internet Explorer Firefox Chrome 10 JavaScript Opera 10 Warning for Non Browsers 10 4 Placement 12 JavaScript
< head> Section body> 13 JavaScript Sections External File 14 5 Variables 16 JavaScript Datatypes Variable Scope 17 JavaScript Names 18 JavaScript Reserved Words 19 6 Operators 20 What an Operator? 20 Arithmetic 20 Comparison 23 Logical 26 iii Bitwise 28 Assignment 31 Miscellaneous 34 7 If Else 38 Flow Chart if else 38 if Statement 39 if 40 if 41 8 Switch Case 43 Flow 43 9 While Loop 47 The while do 49 10 For 52 The 52 11 55 12 Control 57 The break continue 59 Using Labels to 60 13 Functions 64 Function Definition 64 Calling a Function 65 Function Parameters 66 The return 67 Nested 68 Function () Constructor 70 Literals 71 14 Events 74 What Event? 74 onclick Event Type 74 onsubmit 75 onmouseover onmouseout 76 HTML 5 Standard 77 15 Cookies 82 What Cookies? 82 How It Works? 82 Storing 83 Reading 84 Setting Expiry Date 86 Deleting Cookie 87 iv 16 Page Redirect 89 What Redirection? 89 JavaScript Refresh 89 Auto 89 How Re direction 90 17 Dialog Box 94 Alert 94 Confirmation 95 Prompt 96 18 Void Keyword 98 19 Printing 101 How Print Page? 102 PART 2: OBJECTS 103 20 Objects 105 Object Properties Methods 105 User Defined 106 Defining Object 108 The ‘with’ 109 21 Number 112 Number 112 MAX_VALUE 113 MIN_VALUE 114 NaN 115 NEGATIVE_INFINITY 117 POSITIVE_INFINITY 118 Prototype 119 constructor 121 Number 121 toExponential 122 toFixed 124 toLocaleString 125 toPrecision 126 toString 127 valueOf 128 22 Boolean 130 Boolean 130 constructor 130 Prototype 131 Boolean 132 toSource 133 toString 134 كتب لغات البرمجة مجاناً PDF اونلاين لغة (بالإنجليزية: Programming language) هي مجموعة من الأوامر تكتب وفق قواعد تُحَدَّد بواسطة ومن ثُمَّ تمر هذه بعدة مراحل إلى أن تنفذ جهاز الحاسوب تقسم بناء قربها اللغات الإنسانية إلى: لغة عالية المستوى (قريبة اللغة التي يفهمها البشر مثل: السي شارب البايثون الجافا سي ++ لغة منخفضة الآلة) التجميع وتقسم أحياناً الأغراض المرغوبة المستخدمة هناك صُممت لكي تعمل أجهزة معينة مثل تقوم شركة ما بإنتاج حاسوب أو معالج مركزي (وحدة معالجة مركزية) وتوفر له دليل استعمال يحتوي عليه وهناك أخرى أكثر عمومية بشكل مستقل عن نوع الآلة أي أنها ضمن آلة افتراضية جافا
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كتاب
Preview Javascript Tutorial
كتاب
Preview Javascript Tutorial
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مساهمة من: Pvt. Ltd.
( الأربعاء 13 يناير 2016 ( 11:51 مساءً )) - تبليغ عن سوء استخدام
عن كتاب Preview Javascript Tutorial:
Preview Javascript Tutorial
Table of Contents
About the Tutorial .............................................................................................................................................
Audience ........................................................................................................................................................... i
Prerequisites ..................................................................................................................................................... i
Copyright and Disclaimer ................................................................................................................................. i
Table of Contents ............................................................................................................................................ ii
PART 1: JAVASCRIPT BASICS ........................................................................................................ 1
1. JAVASCRIPT – Overview ............................................................................................................................ 2
What is JavaScript? .......................................................................................................................................... 2
Client-Side JavaScript....................................................................................................................................... 2
Advantages of JavaScript ................................................................................................................................. 3
Limitations of JavaScript .................................................................................................................................. 3
JavaScript Development Tools......................................................................................................................... 3
Where is JavaScript Today? ............................................................................................................................. 4
2. JAVASCRIPT – Syntax ................................................................................................................................ 5
Your First JavaScript Code ............................................................................................................................... 5
Whitespace and Line Breaks ............................................................................................................................ 6
Semicolons are Optional.................................................................................................................................. 6
Case Sensitivity ................................................................................................................................................ 7
Comments in JavaScript .................................................................................................................................. 7
3. JAVASCRIPT – Enabling ............................................................................................................................. 9
JavaScript in Internet Explorer ........................................................................................................................ 9
JavaScript in Firefox ......................................................................................................................................... 9
JavaScript in Chrome ..................................................................................................................................... 10
JavaScript in Opera ........................................................................................................................................ 10
Warning for Non-JavaScript Browsers ........................................................................................................... 10
4. JAVASCRIPT – Placement ........................................................................................................................ 12
JavaScript in ... Section ......................................................................................................... 12
JavaScript in ... Section ......................................................................................................... 13
JavaScript in and Sections .................................................................................................... 13
JavaScript in External File .............................................................................................................................. 14
5. JAVASCRIPT – Variables .......................................................................................................................... 16
JavaScript Datatypes...................................................................................................................................... 16
JavaScript Variables ....................................................................................................................................... 16
JavaScript Variable Scope .............................................................................................................................. 17
JavaScript Variable Names ............................................................................................................................ 18
JavaScript Reserved Words ........................................................................................................................... 19
6. JAVASCRIPT – Operators ......................................................................................................................... 20
What is an Operator? .................................................................................................................................... 20
Arithmetic Operators..................................................................................................................................... 20
Comparison Operators .................................................................................................................................. 23
Logical Operators ........................................................................................................................................... 26
iii
Bitwise Operators .......................................................................................................................................... 28
Assignment Operators ................................................................................................................................... 31
Miscellaneous Operators ............................................................................................................................... 34
7. JAVASCRIPT – If-Else ............................................................................................................................... 38 Flow Chart of if-else ....................................................................................................................................... 38
if Statement ................................................................................................................................................... 39
if...else Statement ......................................................................................................................................... 40
if...else if... Statement ................................................................................................................................... 41
8. JAVASCRIPT – Switch-Case ...................................................................................................................... 43
Flow Chart ..................................................................................................................................................... 43
9. JAVASCRIPT – While Loop ....................................................................................................................... 47
The while Loop .............................................................................................................................................. 47
The do...while Loop ....................................................................................................................................... 49
10. JAVASCRIPT – For Loop ........................................................................................................................... 52
The for Loop .................................................................................................................................................. 52
11. JAVASCRIPT – For-in Loop ....................................................................................................................... 55
12. JAVASCRIPT – Loop Control ..................................................................................................................... 57
The break Statement ..................................................................................................................................... 57
The continue Statement ................................................................................................................................ 59
Using Labels to Control the Flow ................................................................................................................... 60
13. JAVASCRIPT – Functions .......................................................................................................................... 64
Function Definition ........................................................................................................................................ 64
Calling a Function .......................................................................................................................................... 65
Function Parameters ..................................................................................................................................... 66
The return Statement .................................................................................................................................... 67 Nested Functions ........................................................................................................................................... 68
Function () Constructor ................................................................................................................................. 70 Function Literals ............................................................................................................................................ 71
14. JAVASCRIPT – Events............................................................................................................................... 74
What is an Event? .......................................................................................................................................... 74
onclick Event Type ......................................................................................................................................... 74
onsubmit Event Type ..................................................................................................................................... 75
onmouseover and onmouseout .................................................................................................................... 76
HTML 5 Standard Events ............................................................................................................................... 77
15. JAVASCRIPT – Cookies ............................................................................................................................. 82
What are Cookies?......................................................................................................................................... 82
How It Works? ............................................................................................................................................... 82
Storing Cookies .............................................................................................................................................. 83
Reading Cookies ............................................................................................................................................ 84
Setting Cookies Expiry Date ........................................................................................................................... 86
Deleting a Cookie ........................................................................................................................................... 87
iv
16. JAVASCRIPT – Page Redirect ................................................................................................................... 89
What is Page Redirection? ............................................................................................................................. 89
JavaScript Page Refresh ................................................................................................................................. 89
Auto Refresh .................................................................................................................................................. 89
How Page Re-direction Works? ..................................................................................................................... 90
17. JAVASCRIPT – Dialog Box ........................................................................................................................ 94
Alert Dialog Box ............................................................................................................................................. 94
Confirmation Dialog Box ................................................................................................................................ 95
Prompt Dialog Box ......................................................................................................................................... 96
18. JAVASCRIPT – Void Keyword ................................................................................................................... 98
19. JAVASCRIPT – Page Printing .................................................................................................................. 101
How to Print a Page? ................................................................................................................................... 102
PART 2: JAVASCRIPT OBJECTS ................................................................................................. 103
20. JAVASCRIPT – Objects ........................................................................................................................... 105
Object Properties......................................................................................................................................... 105
Object Methods ........................................................................................................................................... 105
User-Defined Objects .................................................................................................................................. 106
Defining Methods for an Object .................................................................................................................. 108
The ‘with’ Keyword ...................................................................................................................................... 109
21. JAVASCRIPT – Number .......................................................................................................................... 112
Number Properties ...................................................................................................................................... 112
MAX_VALUE ................................................................................................................................................ 113 MIN_VALUE ................................................................................................................................................. 114
NaN .............................................................................................................................................................. 115
NEGATIVE_INFINITY ..................................................................................................................................... 117
POSITIVE_INFINITY ...................................................................................................................................... 118
Prototype ..................................................................................................................................................... 119
constructor .................................................................................................................................................. 121
Number Methods ........................................................................................................................................ 121
toExponential () ........................................................................................................................................... 122
toFixed () ...................................................................................................................................................... 124
toLocaleString () .......................................................................................................................................... 125
toPrecision () ............................................................................................................................................... 126
toString () ..................................................................................................................................................... 127 valueOf () ..................................................................................................................................................... 128
22. JAVASCRIPT – Boolean .......................................................................................................................... 130
Boolean Properties ...................................................................................................................................... 130
constructor () ............................................................................................................................................... 130
Prototype ..................................................................................................................................................... 131
Boolean Methods ........................................................................................................................................ 132 toSource () ................................................................................................................................................... 133
toString () ..................................................................................................................................................... 134 valueOf () .....................................................................................................................................................
Preview Javascript Tutorial
Table of Contents
About the Tutorial .............................................................................................................................................
Audience ........................................................................................................................................................... i
Prerequisites ..................................................................................................................................................... i
Copyright and Disclaimer ................................................................................................................................. i
Table of Contents ............................................................................................................................................ ii
PART 1: JAVASCRIPT BASICS ........................................................................................................ 1
1. JAVASCRIPT – Overview ............................................................................................................................ 2
What is JavaScript? .......................................................................................................................................... 2
Client-Side JavaScript....................................................................................................................................... 2
Advantages of JavaScript ................................................................................................................................. 3
Limitations of JavaScript .................................................................................................................................. 3
JavaScript Development Tools......................................................................................................................... 3
Where is JavaScript Today? ............................................................................................................................. 4
2. JAVASCRIPT – Syntax ................................................................................................................................ 5
Your First JavaScript Code ............................................................................................................................... 5
Whitespace and Line Breaks ............................................................................................................................ 6
Semicolons are Optional.................................................................................................................................. 6
Case Sensitivity ................................................................................................................................................ 7
Comments in JavaScript .................................................................................................................................. 7
3. JAVASCRIPT – Enabling ............................................................................................................................. 9
JavaScript in Internet Explorer ........................................................................................................................ 9
JavaScript in Firefox ......................................................................................................................................... 9
JavaScript in Chrome ..................................................................................................................................... 10
JavaScript in Opera ........................................................................................................................................ 10
Warning for Non-JavaScript Browsers ........................................................................................................... 10
4. JAVASCRIPT – Placement ........................................................................................................................ 12
JavaScript in ... Section ......................................................................................................... 12
JavaScript in ... Section ......................................................................................................... 13
JavaScript in and Sections .................................................................................................... 13
JavaScript in External File .............................................................................................................................. 14
5. JAVASCRIPT – Variables .......................................................................................................................... 16
JavaScript Datatypes...................................................................................................................................... 16
JavaScript Variables ....................................................................................................................................... 16
JavaScript Variable Scope .............................................................................................................................. 17
JavaScript Variable Names ............................................................................................................................ 18
JavaScript Reserved Words ........................................................................................................................... 19
6. JAVASCRIPT – Operators ......................................................................................................................... 20
What is an Operator? .................................................................................................................................... 20
Arithmetic Operators..................................................................................................................................... 20
Comparison Operators .................................................................................................................................. 23
Logical Operators ........................................................................................................................................... 26
iii
Bitwise Operators .......................................................................................................................................... 28
Assignment Operators ................................................................................................................................... 31
Miscellaneous Operators ............................................................................................................................... 34
7. JAVASCRIPT – If-Else ............................................................................................................................... 38 Flow Chart of if-else ....................................................................................................................................... 38
if Statement ................................................................................................................................................... 39
if...else Statement ......................................................................................................................................... 40
if...else if... Statement ................................................................................................................................... 41
8. JAVASCRIPT – Switch-Case ...................................................................................................................... 43
Flow Chart ..................................................................................................................................................... 43
9. JAVASCRIPT – While Loop ....................................................................................................................... 47
The while Loop .............................................................................................................................................. 47
The do...while Loop ....................................................................................................................................... 49
10. JAVASCRIPT – For Loop ........................................................................................................................... 52
The for Loop .................................................................................................................................................. 52
11. JAVASCRIPT – For-in Loop ....................................................................................................................... 55
12. JAVASCRIPT – Loop Control ..................................................................................................................... 57
The break Statement ..................................................................................................................................... 57
The continue Statement ................................................................................................................................ 59
Using Labels to Control the Flow ................................................................................................................... 60
13. JAVASCRIPT – Functions .......................................................................................................................... 64
Function Definition ........................................................................................................................................ 64
Calling a Function .......................................................................................................................................... 65
Function Parameters ..................................................................................................................................... 66
The return Statement .................................................................................................................................... 67 Nested Functions ........................................................................................................................................... 68
Function () Constructor ................................................................................................................................. 70 Function Literals ............................................................................................................................................ 71
14. JAVASCRIPT – Events............................................................................................................................... 74
What is an Event? .......................................................................................................................................... 74
onclick Event Type ......................................................................................................................................... 74
onsubmit Event Type ..................................................................................................................................... 75
onmouseover and onmouseout .................................................................................................................... 76
HTML 5 Standard Events ............................................................................................................................... 77
15. JAVASCRIPT – Cookies ............................................................................................................................. 82
What are Cookies?......................................................................................................................................... 82
How It Works? ............................................................................................................................................... 82
Storing Cookies .............................................................................................................................................. 83
Reading Cookies ............................................................................................................................................ 84
Setting Cookies Expiry Date ........................................................................................................................... 86
Deleting a Cookie ........................................................................................................................................... 87
iv
16. JAVASCRIPT – Page Redirect ................................................................................................................... 89
What is Page Redirection? ............................................................................................................................. 89
JavaScript Page Refresh ................................................................................................................................. 89
Auto Refresh .................................................................................................................................................. 89
How Page Re-direction Works? ..................................................................................................................... 90
17. JAVASCRIPT – Dialog Box ........................................................................................................................ 94
Alert Dialog Box ............................................................................................................................................. 94
Confirmation Dialog Box ................................................................................................................................ 95
Prompt Dialog Box ......................................................................................................................................... 96
18. JAVASCRIPT – Void Keyword ................................................................................................................... 98
19. JAVASCRIPT – Page Printing .................................................................................................................. 101
How to Print a Page? ................................................................................................................................... 102
PART 2: JAVASCRIPT OBJECTS ................................................................................................. 103
20. JAVASCRIPT – Objects ........................................................................................................................... 105
Object Properties......................................................................................................................................... 105
Object Methods ........................................................................................................................................... 105
User-Defined Objects .................................................................................................................................. 106
Defining Methods for an Object .................................................................................................................. 108
The ‘with’ Keyword ...................................................................................................................................... 109
21. JAVASCRIPT – Number .......................................................................................................................... 112
Number Properties ...................................................................................................................................... 112
MAX_VALUE ................................................................................................................................................ 113 MIN_VALUE ................................................................................................................................................. 114
NaN .............................................................................................................................................................. 115
NEGATIVE_INFINITY ..................................................................................................................................... 117
POSITIVE_INFINITY ...................................................................................................................................... 118
Prototype ..................................................................................................................................................... 119
constructor .................................................................................................................................................. 121
Number Methods ........................................................................................................................................ 121
toExponential () ........................................................................................................................................... 122
toFixed () ...................................................................................................................................................... 124
toLocaleString () .......................................................................................................................................... 125
toPrecision () ............................................................................................................................................... 126
toString () ..................................................................................................................................................... 127 valueOf () ..................................................................................................................................................... 128
22. JAVASCRIPT – Boolean .......................................................................................................................... 130
Boolean Properties ...................................................................................................................................... 130
constructor () ............................................................................................................................................... 130
Prototype ..................................................................................................................................................... 131
Boolean Methods ........................................................................................................................................ 132 toSource () ................................................................................................................................................... 133
toString () ..................................................................................................................................................... 134 valueOf () .....................................................................................................................................................
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