Convert array of strings to array of numbers [duplicate]

Question

I have a jQuery array ["3434", "3433"]

And I would like to make it like [3434, 3433]

["3434", "3433"].map(Number)

Pranav C Balan
– Pranav C Balan

2018-03-20 08:05:31 +00:00
Commented Mar 20, 2018 at 8:05 — Pranav C Balan
– Pranav C Balan, Commented Mar 20, 2018 at 8:05

Federico klez Culloca · Accepted Answer · 2018-03-20 08:20:23Z

5

No need for jQuery. Supposing you're sure they're all numbers (that is, we're not checking for errors), you can map them with Number, which converts them from string to numbers.

["3434", "3433"].map(Number);

Considering that Number returns NaN in case of error, you may then want to filter the result to remove undesired elements.

let nums = ["3434", "3433", "foo"].map(Number).filter(n => !isNaN(n));
console.log(nums);

edited Mar 20, 2018 at 8:20

answered Mar 20, 2018 at 8:06

Federico klez Culloca

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