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6000 packages found

TypeScript-first schema declaration and validation library with static type inference

published 3.23.8 18 days ago
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Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.

published 3.0.5 7 months ago
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Returns true if a value has the characteristics of a valid JavaScript data descriptor.

published 2.1.3 7 months ago
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Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.

published 3.1.1 7 months ago
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Check if something is a Node.js stream

published 4.0.1 3 months ago
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ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

published 1.2.1 5 years ago
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What is the type of this builtin JS value?

published 1.1.3 2 years ago
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Media Type Database

published 1.52.0 2 years ago
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Detect the file type of a Buffer/Uint8Array/ArrayBuffer

published 19.0.0 5 months ago
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the definitive JavaScript type testing library

published 3.3.0 5 years ago
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unist utility to check if a node passes a test

published 6.0.0 a year ago
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Infer the content-type of a request.

published 1.6.18 5 years ago
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unist utility to select nodes with CSS-like selectors

published 5.1.0 7 months ago
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Check if a value is a plain object

published 4.1.0 2 years ago
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Returns true if an object was created by the `Object` constructor, or Object.create(null).

published 5.0.0 4 years ago
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Determines if an object can be used as an array

published 0.3.2 6 years ago
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Determine if an object is a Stream

published 0.1.2 9 years ago
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Get the native type of a value.

published 6.0.3 4 years ago
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Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

published 7.0.0 6 years ago
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