๐น๋ฐฐ์ด ์์ฑ ๋ฐฉ๋ฒ1. new Array()
๐น๋ฐฐ์ด ์์ฑ ๋ฐฉ๋ฒ2. let arr = [ ];
๐น๋ฐฐ์ด.push(๊ฐ): '๊ฐ์ฅ ๋ง์ง๋ง ์์น'์ ์ถ๊ฐ๋๋ค.
๐น๋ฐฐ์ด[๋ฐฐ์ด.length] = ๊ฐ
๐น๋ฐฐ์ด.shift(): ์ค๋ฅธ์ชฝ์์ ์ผ์ชฝ์ผ๋ก ํ์นธ์ฉ ์ด๋
๐น๋ฐฐ์ด.unshift(): ์ผ์ชฝ์์ ์ค๋ฅธ์ชฝ์ผ๋ก ์ด๋
๐น๋ฐฐ์ด1.concat(๋ฐฐ์ด2): ๋ฐฐ์ด1+๋ฐฐ์ด2 ์ฐ๊ฒฐ ๊ฐ์ผ๋ก ๋ฐํ,
๐นsplice(์์ ์์น, ๊ฐ์): ์๋ณธ์ ์์ ์์น๋ถํฐ '๊ฐ์'๋ฏผํผ ์๋ผ์ ๋ฐํ
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<script>
var arr = new Array();
var arr = [];
arr[1] = 100;
arr[2] = 200;
arr[3] = 300;
arr[5] = 500;
document.write(arr, );
console.log(arr[4])
var arr2 = new Array(111, "AAA", "BBB");
document.write("<br />" + arr2);
var arr3 = ['๋ด', '์ฌ๋จธ', '๊ฐ์', '์ํฐ'];
document.write("<br />" + arr3);
arr3[arr3.length] = 3333;
arr3.push(4444);
document.write("<br />" + arr3);
var joinData = arr3.join("/");
document.write("<br />joinData" + joinData);
arr3.pop()
document.write("<br />arr3=" +arr3);
arr3.shift();
document.write("<br />arr3=" +arr3);
arr3.unshift("Spring");
document.write("<br />arr3=" +arr3);
let arrConcat = arr3.concat(arr2);
document.write("<br />arr3=" + arrConcat);
document.write("<br />arrConcat = "+ arrConcat );
var s1 = arrConcat.splice(3, 2)
document.write("<br />s1=" + s1);
document.write("<br />arrConcat=" + arrConcat);
var jsonData = {
name:"ํ๊ธธ๋" ,
id: "Robotics",
age: 25,
email: {
firstemail: 'aaaaa@nate.com',
secondmail: 'bbbbbb@daum.net',
},
language:['java', 'springframe', 'mybatis'],
}
document.write("<br/>์์ด๋=", jsonData.id );
document.write("<br/>์ด๋ฉ์ผ=", jsonData.email.secondmail);
document.write("<br/>์ธ์ด=", jsonData.language[1]);
</script>
</body>
</html>