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Team translation

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The JavaScript language

An introduction

• An Introduction to JavaScript (@iliakan) An Introduction to JavaScript #44
• Manuals and specifications
• Code editors
• Developer console

JavaScript Fundamentals

• Hello, world!
• Code structure
• The modern mode, "use strict"
• Variables
• Data types
• Interaction: alert, prompt, confirm
• Type Conversions
• Basic operators, maths
• Comparisons
• Conditional branching: if, '?'
• Logical operators
• Nullish coalescing operator '??'
• Loops: while and for
• The "switch" statement
• Functions
• Function expressions
• Arrow functions, the basics
• JavaScript specials

Code quality

• Debugging in Chrome
• Coding Style
• Comments
• Ninja code
• Automated testing with Mocha
• Polyfills

Objects: the basics

• Objects
• Object copying, references
• Garbage collection
• Object methods, "this"
• Constructor, operator "new"
• Optional chaining '?.'
• Symbol type
• Object to primitive conversion

Data types

• Methods of primitives
• Numbers
• Strings
• Arrays
• Array methods
• Iterables
• Map and Set
• WeakMap and WeakSet
• Object.keys, values, entries
• Destructuring assignment
• Date and time
• JSON methods, toJSON

Advanced working with functions

• Recursion and stack
• Rest parameters and spread syntax
• Variable scope, closure
• The old "var"
• Global object
• Function object, NFE
• The "new Function" syntax
• Scheduling: setTimeout and setInterval
• Decorators and forwarding, call/apply
• Function binding
• Arrow functions revisited

Object properties configuration

• Property flags and descriptors
• Property getters and setters

Prototypes, inheritance

• Prototypal inheritance
• F.prototype
• Native prototypes
• Prototype methods, objects without proto

Classes

• Class basic syntax
• Class inheritance
• Static properties and methods
• Private and protected properties and methods
• Extending built-in classes
• Class checking: "instanceof"
• Mixins

Error handling

• Error handling, "try..catch"
• Custom errors, extending Error

Promises, async/await

• Introduction: callbacks
• Promise
• Promises chaining
• Error handling with promises
• Promise API
• Promisification
• Microtasks
• Async/await

Generators, advanced iteration

• Generators
• Async iterators and generators

Modules

• Modules, introduction
• Export and Import
• Dynamic imports

Miscellaneous

• Proxy and Reflect
• Eval: run a code string
• Currying
• Reference Type
• BigInt

Browser: Document, Events, Interfaces

Document

• Browser environment, specs
• DOM tree
• Walking the DOM
• Searching: getElement*, querySelector*
• Node properties: type, tag and contents
• Attributes and properties
• Modifying the document
• Styles and classes
• Element size and scrolling
• Window sizes and scrolling
• Coordinates

Introduction to Events

• Introduction to browser events
• Bubbling and capturing
• Event delegation
• Browser default actions
• Dispatching custom events

UI Events

• Mouse events
• Moving the mouse: mouseover/out, mouseenter/leave
• Drag'n'Drop with mouse events
• Pointer events
• Keyboard: keydown and keyup
• Scrolling

Forms, controls

• Form properties and methods
• Focusing: focus/blur
• Events: change, input, cut, copy, paste
• Forms: event and method submit

Document and resource loading

• Page: DOMContentLoaded, load, beforeunload, unload
• Scripts: async, defer
• Resource loading: onload and onerror

Miscellaneous

• Mutation observer
• Selection and Range
• Event loop: microtasks and macrotasks

Frames and windows

• Popups and window methods
• Cross-window communication
• The clickjacking attack

Binary data, files

• ArrayBuffer, binary arrays
• TextDecoder and TextEncoder
• Blob
• File and FileReader

Network requests

• Fetch
• FormData
• Fetch: Download progress
• Fetch: Abort
• Fetch: Cross-Origin Requests
• Fetch API
• URL objects
• XMLHttpRequest
• Resumable file upload
• Long polling
• WebSocket
• Server Sent Events

Storing data in the browser

• Cookies, document.cookie
• LocalStorage, sessionStorage
• IndexedDB

Animation

• Bezier curve
• CSS-animations
• JavaScript animations

Web components

• From the orbital height
• Custom elements
• Shadow DOM
• Template element
• Shadow DOM slots, composition
• Shadow DOM styling
• Shadow DOM and events

Regular expressions

• Patterns and flags
• Character classes
• Unicode: flag "u" and class \p{...} (@iliakan) Unicode: flag "u" and class \p{...} #46
• Anchors: string start ^ and end $
• Multiline mode of anchors ^ $, flag "m"
• Word boundary: \b
• Escaping, special characters
• Sets and ranges [...]
• Quantifiers +, *, ? and {n}
• Greedy and lazy quantifiers
• Capturing groups
• Backreferences in pattern: \N and \k<name> (@iliakan) Backreferences in pattern: \N and \k<name> #45
• Alternation (OR) |
• Lookahead and lookbehind
• Catastrophic backtracking
• Sticky flag "y", searching at position
• Methods of RegExp and String

[iliakan]

An Introduction to JavaScript

[iliakan]

Unicode: flag "u" and class \p{...}

[iliakan]

Backreferences in pattern: \N and \k