*@description 校验密码强度的方法
*@param {String} val 待校验强度的密码
*@return {Number} 密码强度等级,数字越大强度越高
*/
function checkPwd(val){
var res = 2
// 长度不低于6位和12位,强度分别+1和+2
res += val.length >= 6 ? 1 : 0
res += val.length >= 12 ? 2 : 0
// 包含小写字母,强度+1或+2
res += /[a-z]/.test(val) ? (val.length <8 || /\d{4}/.test(val) ? 1 : 2) : 0
// 包含大写字母,强度+1或+2
res += /[A-Z]/.test(val) ? (val.length <8 || /\d{4}/.test(val) ? 1 : 2) : 0
// 包含特殊字符,强度+1或+2
res += /[^a-zA-Z\s\d]/.test(val) ? (val.length <8 || /\d{4}/.test(val) ? 1 : 2) : 0
return Math.floor(res / 2)
}
完整的js正则表达式:
//强:字母+数字+特殊字符
^(?![a-zA-z]+$)(?!\d+$)(?![!@#$%^&*]+$)(?![a-zA-z\d]+$)(?![a-zA-z!@#$%^&*]+$)(?![\d!@#$%^&*]+$)[a-zA-Z\d!@#$%^&*]+$//中:字母+数字,字母+特殊字符,数字+特殊字符
^(?![a-zA-z]+$)(?!\d+$)(?![!@#$%^&*]+$)[a-zA-Z\d!@#$%^&*]+$
//弱:纯数字,纯字母,纯特殊字符^(?:\d+|[a-zA-Z]+|[!@#$%^&*]+)$
//校验是否全由数字组成function isDigit(s){var patrn=/^[0-9]{1,20}$/if (!patrn.exec(s)) return falsereturn true
}//校验登录名:只能输入5-20个以字母开头、可带数字、“_”、“.”的字串function isRegisterUserName(s){var patrn=/^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/if (!patrn.exec(s)) return falsereturn true}function isRegisterUserName(s){var patrn=/^[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}$/if (!patrn.exec(s)) return falsereturn true}
//校验用户姓名:只能输入1-30个以字母开头的字串Javascript代码function isTrueName(s){var patrn=/^[a-zA-Z]{1,30}$/if (!patrn.exec(s)) return falsereturn true}}}//校验密码:只能输入6-20个字母、数字、下划线
function isPasswd(s){var patrn=/^(\w){6,20}$/if (!patrn.exec(s)) return falsereturn true}//校验普通电话、传真号码:可以“+”开头,除数字外,可含有“-”
function isTel(s){//var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?(\d){1,12})+$/var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/if (!patrn.exec(s)) return falsereturn true}//校验手机号码:必须以数字开头,除数字外,可含有“-”
function isMobil(s){var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/if (!patrn.exec(s)) return falsereturn true}//校验邮政编码
function isPostalCode(s){//var patrn=/^[a-zA-Z0-9]{3,12}$/var patrn=/^[a-zA-Z0-9 ]{3,12}$/if (!patrn.exec(s)) return falsereturn true}//校验搜索关键字
function isSearch(s){var patrn=/^[^`~!@#$%^&*()+=|\\\][\]\{\}:'\,.<>/?]{1}[^`~!@$%^&()+=|\\\][\]\{\}:'\,.<>?]{0,19}$/if (!patrn.exec(s)) return falsereturn true}function isIP(s) //by zergling{var patrn=/^[0-9.]{1,20}$/if (!patrn.exec(s)) return falsereturn true}