Is there an easier method to concatenate variables using JavaScript?

Question

I'm currently doing this:

var 1 = "http://www";
var 2 = ".google.";
var 3 = "com/";

then concatenating them together like this

var link = 1+2+3;

Is there an easier and more proficient way of doing this?

I don't think you can get much more basic. And what do you mean by proficient? — j08691
– j08691, Commented Nov 16, 2014 at 3:43
@yobro: Interesting! you are using the shortcut operator for concatenation, and asking for an easier way :) — Aravind
– Aravind, Commented Nov 16, 2014 at 4:12

six fingered man · Accepted Answer · 2014-11-16 03:47:31Z

1

I don't know what would be much easier than simple concatenation like you show, but you could put them in an Array and join it together.

(I fixed your variable names to make them valid.)

var first = "http://www";
var second = ".google.";
var third = "com/";

var link = [first, second, third].join("");

Or you could use the .concat() method.

var link = first.concat(second, third);

But both of these are longer than your original so I don't know if that's what you want.

answered Nov 16, 2014 at 3:47

six fingered man

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2 Comments

yobro Over a year ago

cheers for the answer mate, as you said, your method is slightly longer. So i think i'll just stick with the method im using. Just thought there was an easier way to do it. cause adding each one together like that looks so amateur :P

RobG Over a year ago

There are some browsers where join is faster, but in most (especially modern) browsers + is hugely faster.

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