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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 = /a/i;
- // console.log(reg.test("abc"))
- // console.log(reg.test('a'))
- // console.log(reg.test("Abc"))
- const reg = /react/gi;
- const str = '学习react,React好,REACT棒';
- console.log(str.replace(reg,'vue'))
- </script>
- </body>
- </html>
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