URL constructing function with ascending arguments

url-constructor.ts

export function urlFormat(str) {
    let urlConstruct = str;
    for (var i = 1; i < arguments.length; i++) {
        // g - global search, m - multiline
        let regEx = new RegExp("\\{" + (i - 1) + '"\\}', 'gm')
        urlConstruct = urlConstruct.replace(regEx, arguments[i]);
    }
    return urlConstruct;
}

// Will work like so(endless amount of args):
// url should look like this to work : http://{0}/{1}/{2} and so on...
urlFormat(str, 1stArg?, 2ndArg?, 3rdArg?)