JavaScript | 자바스크립트 | DATA STRUCTURES 하나

JavaScript | 자바스크립트 | DATA STRUCTURES 하나

Arrays and Objects in JS | Codecademy

In this course, we'll cover some of the more powerful features of JavaScript in greater detail. We'll review arrays, create arrays of arrays, and begin learning about a new data structure: objects.

One. Reviewing Arrays

1/17 You know this!

File1 _ script.js

var list = ["one", "two", "three"];
console.log(list);
| Array, 배열? 기억이 가물가물해서 이게 맞는지 모르겠지만 pass 신호가 떴으니 일단 가보기로 합니다.

2/17 Access by offset
File1 _ script.js
var languages = ["HTML", "CSS", "JavaScript", "Python", "Ruby"];

console.log(languages[2]);

3/17 Array properties
File1 _ script.js
var languages = ["HTML", "CSS", "JavaScript", "Python", "Ruby"];
console.log(languages[2]);

console.log(languages.length);
| Arrays have a property in common with strings.

4/17 Iterating over an array
File1 _ script.js
var languages = ["HTML", "CSS", "JavaScript", "Python", "Ruby"];
for (var i = 0; i < languages.length; i++) {
    console.log(languages[i]);

}

Next: More with Arrays