RegEx Ignore Case

Question

I\'ve been trying to create a regex which would ignore the casing.

This is the regex i am trying to use:

/^[A-Za-z0-9._+\\-\\\']+@+test.com$/;


        

Answer 1

Flags go at the end.

/regex/i

i is for case-Insensitive (or ignore-case)

Answer 2

Simple and straightforward, use following regex expression.

(?i)^[A-Za-z0-9._\-\']+@test.com$

Answer 3

For anyone else who arrives here looking for this, if you've got code that is using the RegExp constructor you can also do this by specifying flags as a second argument:

new RegExp(pattern[, flags])

https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/RegExp

For example:

var pattern = /^[A-Za-z0-9._+\-\']+@+test.com$/;
var regExp = new RegExp(pattern, "i");