Question

How can I clean away 29% from the string below using Javascript?

This is a long string which is 29% of the others.

I need some kind of way to remove all percentage so the code must work with this string too:

This is a long string which is 22% of the others.

Answer 1

The regular expression \d+% matches one or more digits followed by a %. That is then followed by an optional space so you don’t end up with two spaces in a row.

var s = "This is a long string which is 29% of the others.";
s = s.replace(/\d+% ?/g, "");
console.log(s);
// This is a long string which is of the others.

Without the optional space at the end of the expression, you end up with

    // This is a long string which is  of the others.
    //-------------------------------^^