pattern password javascript

Question

I'm working on a pattern for a password with the following requirements:

1. Min character = 6
2. Max character = 64
3. Min 1 lowercase character
4. Min 1 uppercase character
5. Min 1 number
6. Min 1 special characters

I am using this regex:

var passReg = /^(?=^[ -~]{6,64}$)(?=.*([a-z][A-Z]))(?=.*[0-9])(.*[ -/|:-@|\[-`|{-~]).+$/;

However, it does not work as expected.

Answer 1

You must be looking for this regex:

^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[ -/:-@\[-`{-~]).{6,64}$

See demo

Here is explanation:

• ^ - Beginning of string
• (?=.*[a-z]) - A positive look-ahead to require a lowercase letter
• (?=.*[A-Z]) - A positive look-ahead to require an uppercase letter
• (?=.*[0-9]) - A positive look-ahead to require a digit
• (?=.*[ -/:-@\[-{-~])` - A positive look-ahead to require a special character
• .{6,64} - Any character (but a newline), 6 to 64 occurrences
• $ - End of string.