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Home Backend Development PHP Tutorial javascript - Can anyone please help me write a regular expression that requires numbers, letters, underlines, and underscores to prohibit the occurrence of @?

javascript - Can anyone please help me write a regular expression that requires numbers, letters, underlines, and underscores to prohibit the occurrence of @?

Dec 01, 2016 am 01:27 AM
git html5 javascript linux php

var reg = /^[\w]{6,12}$/ ;  

if(password.match(reg)){
    alert("The password is valid!");
} 
Copy after login
Copy after login

现在要求 长度为6-16 位字符,可以为“数字/字母/中划线/下划线” ,不能为全下划线和全中划线和全数字

回复内容:

var reg = /^[\w]{6,12}$/ ;  

if(password.match(reg)){
    alert("The password is valid!");
} 
Copy after login
Copy after login

现在要求 长度为6-16 位字符,可以为“数字/字母/中划线/下划线” ,不能为全下划线和全中划线和全数字

<code>let reg = /^(?!^-+$)(?!^_+$)(?!^\d+$)[\d|a-zA-Z|\-|_]{6,16}$/;

let test = ['1234567', '-------', '_______', 'cdwcdcd23@'];
test.map(str => console.log(reg.test(str)));</code>
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/^(w|_|-)+$/.test("abcA5557_78-")

一个正则做不到吧,分开写吧。/^[w-]{6-12}$//^d{12}$/ ...

/^(?!(-|_)\1{5,15}$)(?!\d{6,16}$)[-\w]{6,16}$/

<code>var reg = /^(?!(-|_)\1{5,15}$)(?!\d{6,16}$)[-\w]{6,16}$/;
undefined
reg.test('1234567'); //全数字
false
reg.test('_______');//全下划线
false
reg.test('-------');//全中划线
false
reg.test('____---');
true
reg.test('abcddd');
true
reg.test('__12__---aa');
true</code>
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正则不是很会 尴尬

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