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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>
- const reg = /(ab)(cd)(ef)/
- console.log(reg.test("abcd"))
- console.log(reg.test("xabcd"))
- console.log(reg.test("abxcd"))
- console.log(reg.test("abab"))
- console.log(reg.test("abababaabdc"))
- const data = '2026-08-27';
- // 08/27/2026
- const reg1 = /^(\d{4})-(\d{2})-(\d{2})$/;
- console.log(data.replace(reg1, '$2/$3/$1'));
- const str2 = '红楼梦是四大名著之一'
- const a1 = /西游记/
- const a2 = /红楼梦/
- const cc = /西游记|红楼梦/
- console.log(cc.test(str2))
- </script>
- </body>
- </html>
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