172 packages found

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ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

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published 1.2.1a month ago
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return the first argument that is `!== undefined`

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published 1.0.05 years ago
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Delete nested key-value pairs on an object with a provided key, or remove undefined, null, empty strings, empty arrays, and empty nested objects from an object.

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published 1.2.16 months ago
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Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

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published 6.3.05 days ago
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Remove undefined properties from object

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published 1.2.65 months ago
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Simple function that return the first non null or undefined argument

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published 1.0.05 years ago
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This little utility helps in finding null, undefined etc values from objects and arrays.

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published 3.2.02 months ago
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Monadic library to help with Typescripts --strictNullChecks

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published 2.0.116 months ago
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Validate the type of object's properties.

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published 3.1.25 months ago
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JSON stringify/parser managing 'undefined, Date and Buffer.

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published 2.1.06 months ago
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A stateless implementation of the maybe monad

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published 2.2.39 days ago
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Undefined safe way of extracting object properties

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published 2.0.22 years ago
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nil (null or undefined) type

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published 1.1.03 months ago
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LightWeight, dependency free, javascript object cleaning library

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published 1.0.02 months ago
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A utility function for extracting defined values from an object.

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published 1.0.0a year ago
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Validate the type of array's items.

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published 1.0.010 months ago
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Description

plain implementation of Maybe (Optional, Nullable) monad

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published 2.0.03 years ago
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A typesafe way to get nested properties when any parent property might be undefined, while we wait for the optional chaining operator to finally exist

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published 2.1.24 months ago
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A safe way to access values in deeply nested objects.

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published 1.1.12 years ago
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Description

checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN

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published 2.1.02 years ago