Czech Translation Progress

从翻译检查清单开始，选择一篇尚未勾选的文章，然后在 fork 仓库之前，使用其准确标题发表评论。翻译所选文章，并使用文章标题提交 pull request；翻译获得建议的审查并被 merged 后，工作即完成。

Maintainer List

@otmon76, @danipoma

For New Translators

Please read this first (click to open)

To translate an article:

1. Check that no one else has claimed your article in the checklist below.
2. Comment below with the title of the article that you would like to translate, exactly as listed, e.g. An Introduction to JavaScript.
   • Please take only one article at a time.
3. Fork this repo, translate the article in your fork and submit a pull request!
   • The pull request title should be same as the article, e.g. An Introduction to JavaScript (just like comment)

Please be prompt with your translations! If you find that you can't commit any more, let maintainers know so they can assign the page to someone else.

For Maintainers

Click to open

We recommend that a translation has 2 reviews to be merged.

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Translations are tracked below, like this:

• Home Page (@iliakan) #1

Our helpful bot watches comments and adds the translator nick and PR id, marks completed, when PR is merged. You can read the details at https://javascript.info/translate/bot.

If something doesn't work right, please contact @iliakan.

Team translation

More details about team translation: https://javascript.info/translate/bot.

Only maintainers can check/uncheck items below. If you're not, please write in a comment what you take to translate, the title, exactly as in the list.

The JavaScript language

An introduction

• An Introduction to JavaScript (@otmon76) #6
• Manuals and specifications (@otmon76) #3
• Code editors (@otmon76) #5
• Developer console (@otmon76) #5

JavaScript Fundamentals

• Hello, world! (@otmon76) #66
• Code structure (@otmon76) #67
• The modern mode, "use strict" (@otmon76) #68
• Variables (@otmon76) #71
• Data types (@otmon76) #70
• Interaction: alert, prompt, confirm (@otmon76) #72
• Type Conversions (@otmon76) #73
• Basic operators, maths (@otmon76) #74
• Comparisons (@otmon76) #75
• Conditional branching: if, '?' (@otmon76) #76
• Logical operators (@otmon76) #77
• Nullish coalescing operator '??' (@otmon76) #78
• Loops: while and for (@otmon76) #79
• The "switch" statement (@otmon76) #80
• Functions (@otmon76) #81
• Function expressions (@otmon76) #82
• Arrow functions, the basics (@otmon76) #83
• JavaScript specials (@otmon76) #84

Code quality

• Debugging in the browser (@otmon76) #95
• Coding Style (@otmon76) #97
• Comments (@otmon76) #98
• Ninja code (@otmon76) #99
• Automated testing with Mocha (@otmon76) #100
• Polyfills and transpilers (@otmon76) #110

Objects: the basics

• Objects (@otmon76)
• Object references and copying (@otmon76) #119
• Garbage collection (@otmon76) #120
• Object methods, "this" (@otmon76) #121
• Constructor, operator "new" (@otmon76) #122
• Optional chaining '?.' (@otmon76)
• Symbol type (@otmon76) #124
• Object to primitive conversion (@otmon76) #125

Data types

• Methods of primitives (@otmon76)
• Numbers (@otmon76)
• Strings (@otmon76)
• Arrays (@otmon76)
• Array methods (@otmon76)
• Iterables (@otmon76)
• Map and Set (@otmon76)
• WeakMap and WeakSet (@otmon76)
• Object.keys, values, entries (@otmon76)
• Destructuring assignment (@otmon76)
• Date and time (@otmon76)
• JSON methods, toJSON (@otmon76)

Advanced working with functions

• Recursion and stack (@otmon76)
• Rest parameters and spread syntax (@otmon76)
• Variable scope, closure (@otmon76)
• The old "var" (@otmon76)
• Global object (@otmon76)
• Function object, NFE (@otmon76)
• The "new Function" syntax (@otmon76)
• Scheduling: setTimeout and setInterval (@otmon76)
• Decorators and forwarding, call/apply (@otmon76)
• Function binding (@otmon76)
• Arrow functions revisited (@otmon76)

Object properties configuration

• Property flags and descriptors (@otmon76)
• Property getters and setters (@otmon76)

Prototypes, inheritance

• Prototypal inheritance (@otmon76)
• F.prototype (@otmon76)
• Native prototypes (@otmon76)
• Prototype methods, objects without proto (@otmon76)

Classes

• Class basic syntax (@otmon76)
• Class inheritance (@otmon76)
• Static properties and methods (@otmon76)
• Private and protected properties and methods (@otmon76)
• Extending built-in classes (@otmon76)
• Class checking: "instanceof" (@otmon76)
• Mixins (@otmon76)

Error handling

• Error handling, "try...catch" (@otmon76)
• Custom errors, extending Error (@otmon76)

Promises, async/await

• Introduction: callbacks (@otmon76)
• Promise (@otmon76)
• Promises chaining (@otmon76)
• Error handling with promises (@otmon76)
• Promise API (@otmon76)
• Promisification (@otmon76)
• Microtasks (@otmon76)
• Async/await (@otmon76)

Generators, advanced iteration

• Generators (@otmon76)
• Async iteration and generators (@otmon76)

Modules

• Modules, introduction (@otmon76)
• Export and Import (@otmon76)
• Dynamic imports (@otmon76)

Miscellaneous

• Proxy and Reflect (@otmon76)
• Eval: run a code string (@otmon76)
• Currying (@otmon76)
• Reference Type (@otmon76)
• BigInt (@otmon76)

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{...}
• 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>
• Alternation (OR) |
• Lookahead and lookbehind
• Catastrophic backtracking
• Sticky flag "y", searching at position
• Methods of RegExp and String