177 packages found

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

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published 1.2.13 months 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 1.2.18 months ago
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TypeScript maybe monad for reaching child fields inside complicated objects.

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published 1.2.12 months ago
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A stateless implementation of the maybe monad

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published 2.2.33 months ago
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Monadic library to help with Typescripts --strictNullChecks

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published 2.0.118 months ago
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This little utility helps in finding null, undefined etc values from objects and arrays.

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published 4.0.1a month 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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Check if a variable in a nested object is defined and optionally also check its type. Useful for verifying API responses.

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published 1.2.0a month ago
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Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

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published 6.3.02 months ago
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Validate the type of object's properties.

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published 3.1.27 months ago
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JSON stringify/parser managing 'undefined, Date and Buffer.

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published 2.1.08 months ago
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Optional chaining with a recursive ES6 Proxy

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published 1.0.4a month ago
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Description

Remove undefined properties from object

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published 1.2.67 months ago
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Description

nil (null or undefined) type

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published 1.1.06 months ago
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Description

Converts empty object,empty array, empty string,NaN,null or undefined into the string "N/A" else return the input as-is

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published 1.1.118 days ago
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If value is null or undefined, it sets a default value instead.

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published 0.0.84 years ago
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LightWeight, dependency free, javascript object cleaning library

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published 1.1.02 months ago
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Description

Utilities to determine if string is any of the following null, empty, undefined, NaN, or whitespace.

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published 1.0.14 days ago
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Description

Undefined safe way of extracting object properties

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published 2.0.33 days ago