Question

I am testing this code:

var thecol = '';

// Note: I know that value.cat = '3'

if (value.cat === '1') {
        thecol = 'cat1';
    } else if (value.cat === '2') {
        thecol = 'cat2';
    } else if (value.cat === '3') {
        thecol = 'cat3';
    } else if (value.cat === '4') {
        thecol = 'cat4';
    } else if (value.cat === '5') {
        thecol = 'cat5';
    };

alert(thecol);

The alert is blank for some reason.

Any ideas why.

Answer 1

Are you sure that value.cat is '3' and not 3? You can easily find out by logging typeof value.cat. Since you are using the deep equal it will only return true if both, the value and the type are the same:

'3' === 3 // -> false
'3' == 3 // -> true