is-plain-object

Returns true if an object was created by the `Object` constructor, or Object.create(null).

v5.0.0 URL: https://unpkg.com/is-plain-object@5.0.0/dist/is-plain-object.js

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check is is-object isobject javascript kind kind-of object plain type typeof value

isobject

Returns true if the value is an object and not an array or null.

v4.0.0 URL: https://unpkg.com/isobject@4.0.0/index.cjs.js

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check is is-object isobject kind kind-of kindof native object type typeof value

@stdlib/assert-is-null

Test if a value is null.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-null@0.2.2/lib/index.js

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stdlib stdassert assertion assert utilities utility utils util null is isnull type check valid validate test

is-nil

Checks if the given value is null or undefined

v1.0.1 URL: https://unpkg.com/is-nil@1.0.1/index.js

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check checks is nil detect value type null undefined void

validate.io-undefined-or-null

Validates if a value is undefined or null.

v1.0.0 URL: https://unpkg.com/validate.io-undefined-or-null@1.0.0/lib/index.js

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validate.io validate validation validator valid is undefined null isundefined isnull isvalid