object-assign

ES2015 `Object.assign()` ponyfill

v4.1.1 URL: https://unpkg.com/object-assign@4.1.1/index.js

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object assign extend properties es2015 ecmascript harmony ponyfill prollyfill polyfill shim browser

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

merge-descriptors

Merge objects using their property descriptors

v2.0.0 URL: https://unpkg.com/merge-descriptors@2.0.0/index.js

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merge descriptors object property properties merging getter setter

is-descriptor

Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.

v3.1.1 URL: https://unpkg.com/is-descriptor@3.1.1/index.js

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accessor check data descriptor get getter is keys object properties property set setter type valid value

define-lazy-prop

Define a lazily evaluated property on an object

v3.0.0 URL: https://unpkg.com/define-lazy-prop@3.0.0/index.js

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lazy property properties prop define object value lazily laziness evaluation eval execute getter function fn memoize cache defer deferred