jsesc

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

v3.1.0 URL: https://unpkg.com/jsesc@3.1.0/jsesc.js

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buffer escape javascript json map set string stringify tool

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

set-function-length

Set a function's length property

v1.2.2 URL: https://unpkg.com/set-function-length@1.2.2/index.js

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javascript ecmascript set function length function.length

array-union

Create an array of unique values, in order, from the input arrays

v3.0.1 URL: https://unpkg.com/array-union@3.0.1/index.js

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array set uniq unique duplicate remove union combine merge

which-collection

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

v1.0.2 URL: https://unpkg.com/which-collection@1.0.2/index.js

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map set weakmap weakset collection.es6 es2015