解析
解释:js的test()方法用于检测一个字符串是否匹配某个格式。
语法:RegExpObject.test(string)
返回值:如果String中含有RegExpObject中匹配的字符返回true,否则返回false
例子
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>test</title>
</head>
<body>
</body>
<script>
console.log(/123/.test('1234567'));
console.log(/123/.test('2345678'));
console.log(/^HO/.test('HO1011'));
console.log(/^MU/.test('H01002'));
console.log(/^0MU/.test('MU1002'));
console.log(/com$/.test('https:www.baidu.com'));
console.log(/com$/.test('https:www.baidu.com/'));
console.log(/com$/.test('https:www.baidu.com/s'));
console.log(/\bis\b/.test('this is a pen'));
console.log(/\bis\b/.test('this'));
</script>
</html>
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