How to remove numbers from a string?

Question

I want to remove numbers from a string:

questionText = \"1 ding ?\"

I want to replace the number 1 number and the question mar

Answer 1

This can be done without regex which is more efficient:

var questionText = "1 ding ?"
var index = 0;
var num = "";
do
{
    num += questionText[index];
} while (questionText[++index] >= "0" && questionText[index] <= "9");
questionText = questionText.substring(num.length);

And as a bonus, it also stores the number, which may be useful to some people.