how to add two variables, I'm doing it like this and they are concatenating
id('total-quotas').addEventListener('keyup', function () {
id('vl_total').value = (id('total-quotas').value + id('valor6').value);
});
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developer20000
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convert values to integers ! with parseInt – Pierre Feb 12 '20 at 20:09
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@epascarello another very relevant dupe https://stackoverflow.com/questions/14496531/adding-two-numbers-concatenates-them-instead-of-calculating-the-sum – VLAZ Feb 12 '20 at 20:13
2 Answers
1
They are concatenating because they are strings.
If you expect those two values to be numeric, then cast them via parseInt.
parseInt(id('total-quotas').value, 10) + parseInt(id('valor6').value, 10)
alex067
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Are these strings? If they are strings they will contact, if they are integers passed as strings you might need to parse as an integer
Kevin W
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Thankyou man i get here https://www.w3schools.com/jsref/jsref_parsefloat.asp – developer20000 Feb 12 '20 at 23:06