问题描述
我正在尝试使用格式：模式：Validate.js 的功能来确保密码满足至少一个大写、一个小写、一个数字和一个特殊字符的要求，并且具有最小长度8 个，最多 20 个。存在和长度功能如预期。有人有任何提示吗？
password: {
presence: {
allowEmpty: false,message: "is required",admin: "required",label: "Password*",},length: {
minimum: 8,message: "must be at least 8 characters",maximum: 20,format: {
pattern: /^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!|@|#|\$|%|\^|&|\*])(?=.{8,20})/,}
},解决方法
使用
/^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#$%^&*]).{8,20}$/
说明
--------------------------------------------------------------------------------
^ the beginning of the string
--------------------------------------------------------------------------------
(?= look ahead to see if there is:
--------------------------------------------------------------------------------
.* any character except \n (0 or more times
(matching the most amount possible))
--------------------------------------------------------------------------------
[a-z] any character of: 'a' to 'z'
--------------------------------------------------------------------------------
) end of look-ahead
--------------------------------------------------------------------------------
(?= look ahead to see if there is:
--------------------------------------------------------------------------------
.* any character except \n (0 or more times
(matching the most amount possible))
--------------------------------------------------------------------------------
[A-Z] any character of: 'A' to 'Z'
--------------------------------------------------------------------------------
) end of look-ahead
--------------------------------------------------------------------------------
(?= look ahead to see if there is:
--------------------------------------------------------------------------------
.* any character except \n (0 or more times
(matching the most amount possible))
--------------------------------------------------------------------------------
[0-9] any character of: '0' to '9'
--------------------------------------------------------------------------------
) end of look-ahead
--------------------------------------------------------------------------------
(?= look ahead to see if there is:
--------------------------------------------------------------------------------
.* any character except \n (0 or more times
(matching the most amount possible))
--------------------------------------------------------------------------------
[!@#$%^&*] any character of: '!','@','#','$','%','^','&','*'
--------------------------------------------------------------------------------
) end of look-ahead
--------------------------------------------------------------------------------
.{8,20} any character except \n (between 8 and 20
times (matching the most amount possible))
--------------------------------------------------------------------------------
$ before an optional \n,and the end of the
string