Does JavaScript have a built in stringbuilder class?

Question

I see a few code project solutions.

But is there a regular implementation in JavaScript?

Answer 1

I have defined this function:

function format() {
        var args = arguments;
        if (args.length <= 1) { 
            return args;
        }
        var result = args[0];
        for (var i = 1; i < args.length; i++) {
            result = result.replace(new RegExp("\\{" + (i - 1) + "\\}", "g"), args[i]);
        }
        return result;
    }

And can be called like c#:

 var text = format("hello {0}, your age is {1}.",  "John",  29);

Result:

hello John, your age is 29.