


javascript - Can anyone please help me write a regular expression that requires numbers, letters, underlines, and underscores to prohibit the occurrence of @?
var reg = /^[\w]{6,12}$/ ; if(password.match(reg)){ alert("The password is valid!"); }
现在要求 长度为6-16 位字符,可以为“数字/字母/中划线/下划线” ,不能为全下划线和全中划线和全数字
回复内容:
var reg = /^[\w]{6,12}$/ ; if(password.match(reg)){ alert("The password is valid!"); }
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>
/^(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>
正则不是很会 尴尬

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