Passing regex modifier options to RegExp object

Question

I am trying to create something similar to this:

var regexp_loc = /e/i;

except I want the regexp to be dependent on a string, so I tried to

Answer 1

You need to convert RegExp, you actually can create a simple function to do it for you:

function toReg(str) {
  if(!str || typeof str !== "string") {
    return;
  }
  return new RegExp(str, "i");
}

and call it like:

toReg("something")