var 3d 7b 7d js

1var user_name = prompt("Please enter your name:", "Type here");
2alert("Hello " + user_name);

1//An array is a type of object intended to be only assigned numeric keys
2var tmp = []; // or: var tmp = {}
3tmp.one = 1;
4JSON.stringify(tmp);
5
6// array:
7'[]'
8
9// object:
10'{"one":1}'
11

1// Can be a number
2var myVar = 21
3//Can be a string
4var myVar2 = "string"
5// Used in a function
6function printVar(parvar) {
7  print(parvar);
8}
9
10printVar(myVar2);
11// prints "string"
12printVar(myVar);
13// prints 21