const regex = /^ # Start of line
(?! # Start of the alternation group
(?=.*\d)(?=.*[a-z])(?=.*[A-Z]) # Conditions 1, 2, 3
|
(?=.*\d)(?=.*[a-z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 2, 4
|
(?=.*\d)(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 2, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
)
.* # The line itself is matched
$ # Up to the end of line/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^ # Start of line
(?! # Start of the alternation group
(?=.*\\d)(?=.*[a-z])(?=.*[A-Z]) # Conditions 1, 2, 3
|
(?=.*\\d)(?=.*[a-z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 2, 4
|
(?=.*\\d)(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 2, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
)
.* # The line itself is matched
$ # Up to the end of line', 'gm')
const str = `12345678
adfghj
AASDFGHJ
!@#\$%^&
1234as
1234ASDF
1345!#\$%
asdfg!@#\$
ASDFGB!#\$\$
SSRasd
Goodone123
G00done!@#
1@a
Aa1
must have 3 of 4:
Contain Numbers
Contain a-z
Contain A-Z
contain special characters !@#\$%^&*()_+
`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// 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