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cold-logic/isempty.js

Last active March 5, 2020 21:32
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Check a value and return true for null or undefined
Raw
isempty.js
// Exclude zero (0) which is typically falsy
let isEmpty = (x) => x == 0 ? false : !(x)
/* Tests (run in Node CLI)
> isEmpty(0)
false
> isEmpty(1)
false
> isEmpty(1.5)
false
> isEmpty(true)
false
> isEmpty(false)
false
> isEmpty('hi')
false
> isEmpty(null)
true
> isEmpty(undefined)
true
*/
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