Question

I am trying to replace a certain text in Javascript.

newexp is a variable.
numexp is a variable

replacenamestring = new RegExp('Memberresumeexp\[1\]',"ig");
newexp = newexp.replace(replacenamestring,'Memberresumeexp[' + numexp + ']');

The above replace is not working.

How ever this works.

newexp = newexp.replace(/Memberresumeexp\[1\]/ig,'Memberresumeexp[' + numexp + ']');

Not able to figure out why?

Answer 1

Here’s a working example for you with one BIG caveat — I changed “[1]” to “[\d+]” just in case you needed this for more cases of Memberresumeexp[<any number>]. Also, I hardcoded numexp, because I had not seen how it was initialized.

var replacenamestring = new RegExp('Memberresumeexp\\[\\d+\\]',"ig");

var newexp = "asdfasdflkj;lakwjef Memberresumeexp[1] asdfasdfasdf\nqwerqwerwer Memberresumeexp[2] qwerqwerwqerewr\n";

var numexp = 123;
if(replacenamestring.test(newexp))
{
    newexp = newexp.replace(replacenamestring,'Memberresumeexp[' + numexp + ']');
}