How to concatenate variables in javascript?

Question

I am trying to concatenate variables in inside a function and then return. In php we just put a period before the \"=\" but it is not working in javascript.

Can someone

Answer 1

"+=" is the standard way to concatenate in javascript;

var a = "yourname";
var b = "yourlastname";
var name = a + b;
var complete_name = "my name is: ";
complete_name += name;

result : my name is: yourname yourlastname