Search results

273 packages found

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

published 1.2.1 5 years ago
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return the first argument that is `!== undefined`

published 1.0.1 2 years ago
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LightWeight, dependency free, javascript object cleaning library

published 1.3.2 6 months ago
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To check if the input is null, undefined, empty string, empty array, or an empty object

published 1.0.1 2 months ago
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A simple package to check if input is null, undefined, or an empty string

published 1.2.0 14 days ago
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Typed Option/Optional/Maybe for TypeScript and JavaScript, created to simplify code involving optional values (null, undefined, NaN).

published 5.1.1 7 months ago
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A Node.js library offering functions to check variable types, including arrays, objects, strings, numbers, booleans, and undefined values.

published 0.1.0 6 months ago
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Simple function that return the first non null or undefined argument

published 1.0.0 9 years ago
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Eslint rule to prevent undefined declaration in favor of optional parameter (?) operator in Typescript

published 1.0.2 a year ago
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Recursively remove deeply nested properties and/or falsey values (excluding 0), empty objects, and empty arrays.

published 2.0.0-alpha.3 2 years ago
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Check if something exists (e.g. not null || undefined)

published 1.0.1 9 years ago
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returns a copy of an array or object with null/undefined members removed

published 2.3.0 a year ago
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util for validation that object has defined props

published 1.2.2 7 years ago
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plain implementation of Maybe (Optional, Nullable) monad

published 2.0.0 8 years ago
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Safe Window Getters

published 1.0.1 2 years ago
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This little utility helps in finding null, undefined etc values from objects and arrays.

published 5.13.0 3 years ago
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Check if a given value is empty in JS extending his "truthy" and "falsy" nature

published 1.0.1 8 years ago
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Try to parse a string as JSON and return undefined on failure

published 1.1.4 7 years ago
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undefined is not a function and it's likely to remain so forever

published 1.0.3 7 years ago
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A package for judging a string is null or empty or undefined

published 1.0.2 2 months ago
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