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- <!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>
- // 1.手机号脱敏 13789430987 => 137****0987
- var str = '13789430987';
- const reg = /^(1\d{2})\d{4}(\d{4})$/
- console.log(reg.test(str))
- console.log(str.replace(reg,'$1****$2'))
- // 2.密码匹配 （6-16字母、数字、下划线）
- var str ='hello123456';
- const reg1 = /^\w{6,16}$/
- // const reg1 = /^[a-zA-Z0-9_]{6,16}$/
- console.log(reg1.test(str))
- // 3.匹配16进制颜色 #ff0000 #0f0
- const str1 = "#f00";
- const reg2 = /^#([a-fA-f0-9]{6})|([a-fA-f0-9]{3})$/
- console.log(reg2.test(str1))
- // 4.匹配24小时时间 23:59 20:12 08:35
- const reg4 = /^([0-1][0-9])|([2][0-3]):[0-5][0-9]$/;
- console.log(reg4.test("12:36"))
- console.log(reg4.test("20:12"))
- console.log(reg4.test("24:00"))
- </script>
- </body>
- </html>
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