JS Dynamic RegExp

[The Letter E]

I can't figure out why this regular expression is not working. I had it working before when it was completely hard coded, now with the new dynamic regexp it's failing. I alert'd the regexp out and it looks the same, far as i can tell. Any help is much appreciated!

 

addnum = 1;
handle = 'item';
name = 'item[0]';
pattern = "/^"+handle+"\\[\\d+\\]/";
var regex = new RegExp(pattern);
name = name.replace(regex, handle+"["+addnum+"]");

 

the first 3 variables are placeholders to help visualize the problem, but it should work with many different options.

 

Thanks in advance,

 

E

[requinix]

Only use //s when you're writing the expression as an object, inline.

pattern = /^handle\[\d+\]/;

(that won't work, of course)

 

If as a string then leave them out.

pattern = "^" + handle + "\\[\\d+\\]";

[The Letter E]

That, I did not know. Thank you for that helpful bit of knowledge! It is now working perfectly.