const regex = /^
(?> #MAIN iteration (atomic only for efficiency)
(?<upper>[A-Z]) # an uppercase letter
| # or
(?<lower>[a-z]) # a lowercase letter
| # or
(?<digit>[0-9]) # a digit
| # or
(?<special>[^(0-9|a-z|A-Z)]) # a special
| # or
. # anything else
){10,15}? #REPEATED 8+ times
#
#CONDITIONS:
(?(upper) # 1. There must be at least 1 uppercase
(?(lower) # 2. If (1), there must be 1 lowercase
(?(digit) # 3. If (2), there must be 1 digit
(?(special)
# must be 1 special
| (?!) # Else fail
) #
| (?!) # Else fail
) #
| (?!) # Else fail
) #
| (?!) # Else fail
) $ #/;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^
(?> #MAIN iteration (atomic only for efficiency)
(?<upper>[A-Z]) # an uppercase letter
| # or
(?<lower>[a-z]) # a lowercase letter
| # or
(?<digit>[0-9]) # a digit
| # or
(?<special>[^(0-9|a-z|A-Z)]) # a special
| # or
. # anything else
){10,15}? #REPEATED 8+ times
#
#CONDITIONS:
(?(upper) # 1. There must be at least 1 uppercase
(?(lower) # 2. If (1), there must be 1 lowercase
(?(digit) # 3. If (2), there must be 1 digit
(?(special)
# must be 1 special
| (?!) # Else fail
) #
| (?!) # Else fail
) #
| (?!) # Else fail
) #
| (?!) # Else fail
) $ #', '')
const str = `1ffdA\$@3d3sd\$f`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
if ((m = regex.exec(str)) !== null) {
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions