Add values to array using for loop in JavaScript

Question

I know this is a simple issue, but I am stumped.

I want to do this using a for loop in JavaScript

      var arr = [
        { val: '1', text: '1' },
        { val: '2', text: '2' },
        { val: '3', text: '3' },
       .........
        { val: '30', text: '30' },
        { val: '31', text: '31' }
       ];

I tried this. I want create a select list which shows all month day

    var arr = [
        for (var i = 0; i < 32; i++) {
             { val: i, text: i },
        }
    ];

This shows error.

He has tried something. It did not work. So i think its a valid question — MarsOne
– MarsOne, Commented Sep 3, 2013 at 6:28
to be fair, this is a valid line of python: arr = [{ "val": i, "text": i } for i in range(32)] and would produce the same result as above — Sanketh Katta
– Sanketh Katta, Commented Sep 3, 2013 at 6:38

Sanketh Katta · Accepted Answer · 2013-09-03 06:25:44Z

16

Javascript does not have list comprehensions like that, try this instead:

var arr = [];
for (var i = 0; i < 32; i++) {
    arr.push({ val: i, text: i });        
}

answered Sep 3, 2013 at 6:25

Sanketh Katta

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