js的join split startsWith endsWith

2020-10-28 10:32:24 浏览数 (1)

代码语言:javascript复制
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
</head>
<body>
	<script type="text/javascript">
		 // 1.字符串切割
		 let arr=[1,3,5];
		 let a=arr.join("|");
		 console.log(a);
		 let b=a.split("|");
		 console.log(b);
		 // 2.判断是否以指定字符串开头 ES6
		 let str = "http://www.it666.com";
		 let w=str.startsWith("http");
		 console.log(w);
		 // 3.判断是否以指定字符串结尾 ES6
		 let str1= "lnj.jpg";
		 let r=str1.endsWith("png");
		 console.log(r);
// 4.字符串模板 ES6
let vv=`www.it666.com`;
console.log(vv);
let cc=`<ul>
<li>aaa</li><li>bbb</li>
<li>ccc</li>
</ul>`;
console.log(cc);
 let name = "lnj";
        let age = 34;
        let ff=`${name},${age}`;
        console.log(ff);
	</script>
</body>
</html>

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