Global Chain function example with prototyping

ChainFunction.js

Function.prototype.test = function(x){
    var arg1 = this();
    var arg2 = x;
    
    console.log(
        "Arg1: "   + arg1 + 
        "\nArg2: " + arg2
    );
}

function x(){
    return "arg1";
}

x.test("arg2");
// Should output:
//    Arg1: arg1
//    Arg2: arg2

Fiddle: https://jsfiddle.net/vc6kysmL/