is-number

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

v7.0.0 URL: https://unpkg.com/is-number@7.0.0/index.js

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cast check coerce coercion finite integer is isnan is-nan is-num is-number isnumber isfinite istype kind math nan num number numeric parseFloat parseInt test type typeof value

extend-shallow

Extend an object with the properties of additional objects. node.js/javascript util.

v3.0.2 URL: https://unpkg.com/extend-shallow@3.0.2/index.js

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assign clone extend merge obj object object-assign object.assign prop properties property props shallow util utility utils value

define-property

Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.

v2.0.2 URL: https://unpkg.com/define-property@2.0.2/index.js

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define define-property enumerable key non non-enumerable object prop property 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

postcss-value-parser

Transforms css values and at-rule params into the tree

v4.2.0 URL: https://unpkg.com/postcss-value-parser@4.2.0/lib/index.js

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postcss value parser