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February 23, 2017 17:52
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Test if its a number in JS
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| function isNumber(val) { | |
| // only returns true if its a number | |
| return Number(val) === val; | |
| } | |
| // OR | |
| function isAlsoNumber(val) { | |
| return typeof val === 'number' && !Number.isNaN(val) | |
| } | |
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