I have a regular expression for validating passwords.
/[\w\d]*(([0-9]+.*[A-Za-z]+.*)|[A-Za-z]+.*([0-9]+.*))/
This regex matches any words which contain letters and numbers in them.
I want to add a minimum length restriction as well, I got to know we can use {4,} to add a minimum length of 4.
But I am not able to figure out how to add this minimum length to the whole expression.
For example:
The above regex matches p12 as valid.
I dont want it to match words with letters and numbers with a length of less than 4.
I tried this, but this did not work
/[\w\d]*(([0-9]+.*[A-Za-z]+.*)|[A-Za-z]+.*([0-9]+.*)){4,}/
Any help with respect to adding minimum length restriction to the whole expression would be appriciated.
Thank you.
Using \w also matches \d so this parts [\w\d]* can be written as just \w*
If you want to match only word characters, you could use for example 2 assertions for the char a-z and a digit.
Using a case insensitive pattern:
/^(?=[^\d\n]*\d)(?=[^a-z\n]*[a-z])\w{4,}$/i
const regex = /^(?=[^\d\n]*\d)(?=[^a-z\n]*[a-z])\w{4,}$/;
[
"p12",
"1234",
"abcs",
"p123"
].forEach(s => console.log(`${s} --> ${regex.test(s)}`));