كتاب ES6 tutorialspoint

في هذا الكتاب كل ما تحمله javascript في الإصدار es6 من مميزات وكيفية تنصيب البيئة الخاصة بها على جهازك ES6 tutorialspoint . About the Tutorial ECMAScript (ES) is a scripting language specification standardized by ECMAScript International. It is used by applications to enable client-side scripting. Languages like JavaScript, Jscript and ActionScript are governed by this specification. This tutorial introduces you to ES6 implementation in JavaScript. Audience This tutorial has been prepared for JavaScript developers who are keen on knowing the difference between ECMAScript 5 and ECMAScript 6. It is useful for those who want to learn the latest developments in the language and implement the same in JavaScript. Prerequisites You need to have a basic understanding of JavaScript to make the most of this tutorial. Disclaimer & Copyright Copyright 2016 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. 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ES6 ii Table of Contents About the Tutorial .................................................................................................................................... i Audience .................................................................................................................................................. i Prerequisites ............................................................................................................................................ i Disclaimer & Copyright ............................................................................................................................. i Table of Contents .................................................................................................................................... ii 1. ES6 − OVERVIEW ................................................................................................................. 1 JavaScript ................................................................................................................................................ 1 2. ES6 − ENVIRONMENT .......................................................................................................... 2 Local Environment Setup......................................................................................................................... 2 Installation on Windows ......................................................................................................................... 2 Installation on Mac OS X ......................................................................................................................... 3 Installation on Linux ................................................................................................................................ 4 Integrated Development Environment (IDE) Support .............................................................................. 4 Visual Studio Code .................................................................................................................................. 4 Brackets .................................................................................................................................................. 7 3. ES6 − SYNTAX .................................................................................................................... 10 Whitespace and Line Breaks .................................................................................................................. 11 Comments in JavaScript ........................................................................................................................ 11 Your First JavaScript Code ..................................................................................................................... 12 Executing the Code ................................................................................................................................ 12 Node.js and JS/ES6 ................................................................................................................................ 13 The Strict Mode ..................................................................................................................................... 13 ES6 and Hoisting .................................................................................................................................... 14 ES6 iii 4. ES6 − VARIABLES ............................................................................................................... 15 Type Syntax ........................................................................................................................................... 15 JavaScript and Dynamic Typing ............................................................................................................. 16 JavaScriptVariable Scope ....................................................................................................................... 16 The Let and Block Scope ........................................................................................................................ 17 The const ............................................................................................................................................... 18 ES6 and Variable Hoisting ...................................................................................................................... 18 5. ES6 − OPERATORS ............................................................................................................. 20 Arithmetic Operators ............................................................................................................................ 20 Relational Operators ............................................................................................................................. 22 Logical Operators .................................................................................................................................. 23 Bitwise Operators ................................................................................................................................. 24 Assignment Operators........................................................................................................................... 26 Miscellaneous Operators ...................................................................................................................... 27 Type Operators ..................................................................................................................................... 29 6. ES6 − DECISION MAKING ................................................................................................... 30 The if Statement.................................................................................................................................... 30 The if…else Statement ........................................................................................................................... 32 The else…if Ladder ................................................................................................................................ 33 The switch…case Statement .................................................................................................................. 34 7. ES6 − LOOPS ...................................................................................................................... 38 Definite Loop......................................................................................................................................... 38 Indefinite Loop ...................................................................................................................................... 41 The Loop Control Statements ................................................................................................................ 44 Using Labels to Control the Flow ........................................................................................................... 45 ES6 iv 8. ES6 − FUNCTIONS .............................................................................................................. 49 Classification of Functions ..................................................................................................................... 49 Rest Parameters .................................................................................................................................... 52 Anonymous Function ............................................................................................................................ 52 The Function Constructor ...................................................................................................................... 53 Recursion and JavaScript Functions ....................................................................................................... 54 Lambda Functions ................................................................................................................................. 55 Function Expression and Function Declaration ...................................................................................... 56 Function Hoisting .................................................................................................................................. 57 Immediately Invoked Function Expression ............................................................................................ 57 Generator Functions ............................................................................................................................. 58 9. ES6 − EVENTS .................................................................................................................... 61 Event Handlers ...................................................................................................................................... 61 onclick Event Type ................................................................................................................................. 61 onsubmitEvent Type ............................................................................................................................. 62 onmouseover and onmouseout ............................................................................................................ 63 HTML 5 Standard Events ....................................................................................................................... 63 10. ES6 − COOKIES ................................................................................................................... 70 How It Works?....................................................................................................................................... 70 Storing Cookies ..................................................................................................................................... 70 Reading Cookies .................................................................................................................................... 72 Setting Cookies Expiry Date ................................................................................................................... 73 Deleting a Cookie .................................................................................................................................. 74 11. ES6 − PAGE REDIRECT ........................................................................................................ 76 JavaScript Page Redirection .................................................................................................................. 76 Redirection and Search Engine Optimization ......................................................................................... 77 ES6
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