초급 코드 지구

JavaScript

웹의 언어, 기초부터 비동기까지.

JavaScript is the language of the web. It runs in every browser, on servers with Node.js, and inside countless websites and games. This track takes you from your very first line to real interactive pages: values and logic, arrays and loops, functions and closures, objects and JSON, the DOM and events, and async code with promises, async/await and fetch.

Every lesson is short, hands-on and checked with quizzes, so you learn by doing.

레슨: 29
시간: 3시간
난이도: 초급

코스 시작하기 · Why JavaScript?

이 코스의 레슨은 당분간 영어로 제공돼요.

브론즈 도전 가능
실버 도전 가능
골드 잠김

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브론즈, 실버, 골드 세 가지 시험이 기다리고 있어요.

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이 코스를 마치면 할 수 있는 것

Write modern JavaScript with const, arrow functions and template literals
Transform data with arrays, objects, map, filter and reduce
Make web pages interactive with the DOM and events
Load live data from an API with fetch, promises and async/await
Handle errors and debug your code with confidence

여정

1
챕터 1
Getting started

What JavaScript is, where it runs, and your first lines in the console.

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2
챕터 2
Values and variables

Store data with let and const, know your types, and work with numbers and text.

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3
챕터 3
Logic and decisions

Compare values safely and branch with if, the ternary operator and switch.

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4
챕터 4
Arrays and loops

Store lists, repeat work, and transform data with map, filter and reduce.

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5
챕터 5
Functions

Reusable logic: parameters, arrow functions, callbacks, closures and modules.

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6
챕터 6
Objects and JSON

Model real data with objects and classes, and exchange it as JSON.

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7
챕터 7
JavaScript in the browser

Read and change the page with the DOM, and respond to the user with events.

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8
챕터 8
Async JavaScript

The event loop, promises, async and await, and fetching live data.

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