numbers - Compare x ='' and x = 0 in Javascript -
i have following:
var = 0; if (number(a) != '') { alert('hi'); }
i never alert though not empty, 0 , need value numeric calculations.enter code here
what's going on here?
the !=
operator type conversion if needed, ''
converted numeric value 0
.
you can use !==
operator avoid type conversion:
var = 0; if (number(a) !== '') { alert('hi'); }
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