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@@ -10,9 +10,24 @@
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<body>
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<script>
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// 1.手机号脱敏 13789430987 => 137****0987
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+ const str = '13789430987';
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+ const reg = /^(1\d{2})\d{4}(\d{4})$/;
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+ console.log(str.replace(reg, '$1****$2'))
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// 2.密码匹配 （6-16字母、数字、下划线）
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+ const str1 = 'hello123456';
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+ const reg1 = /^\w{6,16}$/;
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+ console.log(reg1.test(str1))
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// 3.匹配16进制颜色 #ff0000 #0f0
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+ const str2 = '#FF0000';
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+ const reg2 = /^#([a-fA-F0-9]{6})|([a-fA-F0-9]{3})$/
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+ console.log(reg2.test(str2))
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// 4.匹配24小时时间 23:59 20:12 08:35 18:22
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+ const reg3 = /^([0-1][0-9])|([2][0-3]):[0-5][0-9]$/;
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+ console.log(reg3.test('23:59'))
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+ console.log(reg3.test('20:12'))
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+ console.log(reg3.test('08:35'))
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+ console.log(reg3.test('18:22'))
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+ // /^[1-9]\d{5}(?:18|19|20)\d{2}(?:0[1-9]|10|11|12)(?:0[1-9]|[1-2]\d|30|31)\d{3}[\dXx]$/
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</script>
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</body>
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zheng