Javascript Validation With Regex Tier: 1-Beginner In this challenge, you'd create a javascript validation script to validate the inputs entered by a user using RegEx. You could always refer to the ...

Javascript Validation With Regex Tier: 1-Beginner In this challenge, you'd create a javascript validation script to validate the inputs entered by a user using RegEx. You could always refer to the ...

This blog post will particularly deal with the form validation of username and password. Part of the registration process confirm that the user has entered a valid email address and entered password.

In some regex implementations there are only nine of them, however, with most contemporary Javascript implementations you can have up to 99 such capture-groups (where such groups are 1-based).

It's been a while since I worked on regexs in JavaScript, but generally the way you do this in most programming languages is to build the regex as a string and then pass it into the regex engine.