Javascript.info Ebook Part 1: The JavaScript language

Table of contents :
An Introduction to JavaScript……Page 5
Manuals and specifications……Page 8
Code editors……Page 9
Developer console……Page 11
Hello, world!……Page 13
Code structure……Page 16
The modern mode, "use strict"……Page 20
Variables……Page 22
Data types……Page 30
Type Conversions……Page 36
Operators……Page 40
Comparisons……Page 50
Interaction: alert, prompt, confirm……Page 55
Conditional operators: if, '?'……Page 57
Logical operators……Page 64
Loops: while and for……Page 72
The "switch" statement……Page 82
Functions……Page 86
Function expressions and arrows……Page 97
JavaScript specials……Page 107
Debugging in Chrome……Page 112
Coding Style……Page 118
Comments……Page 18
Ninja code……Page 129
Automated testing with mocha……Page 134
Polyfills……Page 146
Objects……Page 147
Garbage collection……Page 164
Symbol type……Page 171
Object methods, "this"……Page 177
Object to primitive conversion……Page 186
Constructor, operator "new"……Page 191
Methods of primitives……Page 197
Numbers……Page 201
Strings……Page 212
Arrays……Page 227
Array methods……Page 239
Iterables……Page 258
Map, Set, WeakMap and WeakSet……Page 264
Object.keys, values, entries……Page 276
Destructuring assignment……Page 280
Date and time……Page 291
JSON methods, toJSON……Page 302
Recursion and stack……Page 313
Rest parameters and spread operator……Page 327
Closure……Page 332
The old "var"……Page 350
Global object……Page 353
Function object, NFE……Page 355
The "new Function" syntax……Page 363
Scheduling: setTimeout and setInterval……Page 365
Decorators and forwarding, call/apply……Page 373
Function binding……Page 385
Currying and partials……Page 390
Arrow functions revisited……Page 104
Object properties configuration……Page 399
Property flags and descriptors……Page 400
Property getters and setters……Page 405
Prototypal inheritance……Page 410
F.prototype……Page 420
Native prototypes……Page 425
Prototype methods, objects without __proto__……Page 431
Class basic syntax……Page 437
Class inheritance……Page 444
Static properties and methods……Page 457
Private and protected properties and methods……Page 461
Extending built-in classes……Page 468
Class checking: "instanceof"……Page 471
Mixins……Page 476
Error handling, "try..catch"……Page 480
Custom errors, extending Error……Page 494
Introduction: callbacks……Page 501
Promise……Page 507
Promises chaining……Page 515
Error handling with promises……Page 524
Promise API……Page 530
Promisification……Page 536
Microtasks……Page 539
Async/await……Page 541
Generators……Page 549
Async iterators and generators……Page 560
Modules, introduction……Page 567
Export and Import……Page 574
Dynamic imports……Page 583
Proxy and Reflect……Page 585
Eval: run a code string……Page 604