has-property-descriptors

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

v1.0.2 URL: https://unpkg.com/has-property-descriptors@1.0.2/index.js

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property descriptors has environment env defineProperty getOwnPropertyDescriptor

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

define-data-property

Define a data property on an object. Will fall back to assignment in an engine without descriptors.

v1.1.4 URL: https://unpkg.com/define-data-property@1.1.4/index.js

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define data property object accessor javascript ecmascript enumerable configurable writable

is-accessor-descriptor

Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.

v3.0.5 URL: https://unpkg.com/is-accessor-descriptor@3.0.5/index.js

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

is-data-descriptor

Returns true if a value has the characteristics of a valid JavaScript data descriptor.

v2.1.3 URL: https://unpkg.com/is-data-descriptor@2.1.3/index.js

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