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

The + operator will concatenate two strings, ie. "Hello" + " World" //> "Hello World". Using += is a short cut for assigning and concatenating a variable with its self.

ie. instead of:

var myVar = "somestring";
myVar = myVar + "another String";

you can just do:

var myVar = "somestring";
myVar += "another String";

For your problem:

function NewMenuItem() {
    //This is just a small example. The end result is more broader then this
    var output = "<input type='checkbox'> ";
    output += "<input type='text'> ";
    return output;
} //end of NewMenuItem(){

Answer 2

"+=" 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

Answer 3

With Concat function or with plus operator (+).

Check this link jsfiddle to see a working example.