is-nil

v0.9.6

STATUS

Passing

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VISIBILITY

Public

PUBLISHED

5 years ago

SIZE

690 B

Checks if the input value is `null` or `undefined`.

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isNil (

x:*

) : Boolean

Checks if the input value is null or undefined.

Example

R.isNil(null); //=> true
     R.isNil(undefined); //=> true
     R.isNil(0); //=> false
     R.isNil([]); //=> false

Argument

x: *

The value to test.

Returns

Boolean

`true` if `x` is `undefined` or `null`, otherwise `false`.