[removed] how to pass found string.replace value to function?

Question

When I have something like this:

var str = \"0123\";
var i = 0;
str.replace(/(\\d)/g,function(s){i++;return s;}(\'$1\'));
alert(i);

Why doe

Answer 1

The expression

function(s){i++;return s;}('$1')

Creates the function and immediately evaluates it, passing $1 as an argument. The str.replace method already receives a string as its second argument, not a function. I believe you want this:

str.replace(/(\d)/g,function(s){i++;return s;});