vars javascript

var num = 1:

var <variable-name>;

var <variable-name> = <value>;

 var text = "";
var i;
for (i = 0; i < 5; i++) {
  text += "The number is " + i + "<br>";
} 

var /*var*/ = /*What it does*/

//An array is a type of object intended to be only assigned numeric keys
var tmp = []; // or: var tmp = {}
tmp.one = 1;
JSON.stringify(tmp);

// array:
'[]'

// object:
'{"one":1}'