typeof

Node module. typeOf('a string') == 'string', typeOf([]) == 'array', etc.. Also supports named functions detections aka javascript classes

v1.0.0 URL: https://unpkg.com/typeof@1.0.0/index.js

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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

kind-of

Get the native type of a value.

v6.0.3 URL: https://unpkg.com/kind-of@6.0.3/index.js

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arguments array boolean check date function is is-type is-type-of kind kind-of number object of regexp string test type type-of typeof types

has-symbols

Determine if the JS environment has Symbol support. Supports spec, or shams.

v1.1.0 URL: https://unpkg.com/has-symbols@1.1.0/index.js

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Symbol symbols typeof sham polyfill native core-js ES6