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The JavaScript Language

Here we learn JavaScript, starting from scratch and go on to advanced concepts like OOP.

We concentrate on the language itself here, with the minimum of environment-specific notes.

1.1An Introduction to JavaScript

1.2Code editors

1.3Developer console

2.1Hello, world!

2.2Code structure

2.3The modern mode, "use strict"

2.4Variables

2.5Data types

2.6Type conversions

2.7Operators

2.8Comparisons

2.9Interaction: alert, prompt, confirm

2.10Conditional operators: if, '?'

2.11Logical operators

2.12Loops: while and for

2.13The "switch" statement

2.14Functions

2.15Function expressions and arrows

2.16JavaScript specials

3.1 Debugging in Chrome

3.2 Coding style

3.3 Comments

3.4 Ninja code

3.5 Automated testing with mocha

3.6 Polyfills

4.1Objects

4.2Garbage collection

4.3Symbol type

4.4Object methods, "this"

4.5Object to primitive conversion

4.6Constructor, operator "new"

5.1Methods of primitives

5.2 Numbers

5.3 Strings

5.4 Arrays

5.5 Array methods

5.6 Iterables

5.7 Map, Set, WeakMap and WeakSet

5.8 Object.keys, values, entries

5.9 Destructuring assignment

5.10 Date and time

5.11 JSON methods, toJSON