1238 packages found

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Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

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published 1.1.2a month ago
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ES2015-compliant shim for Object.is - differentiates between -0 and +0

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published 1.1.511 days ago
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Is this an arguments object? It's a harder question than you think.

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published 1.1.03 months ago
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Is this value negative zero? === will lie to you

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published 2.0.13 months ago
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Detect the file type of a Buffer/Uint8Array/ArrayBuffer

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published 16.2.02 months ago
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Returns true if an object was created by the `Object` constructor, or Object.create(null).

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published 5.0.06 months ago
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ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

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published 1.3.22 months ago
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Check if a path is a file, directory, or symlink

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published 5.0.0a month ago
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Check if a value is a plain object

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published 3.0.05 months ago
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Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

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published 1.1.517 days ago
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Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

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published 2.0.23 months ago
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Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

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published 2.0.23 months ago
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Detect whether or not an object is a Typed Array

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published 1.0.06 years ago
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Get the native type of a value.

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published 6.0.3a year ago
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i18n for ISO 3166-1 country codes

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published 6.5.0a month ago
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Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)

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published 2.2.010 months ago
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Determine if a value is an ES6 Symbol or not.

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published 1.0.3a year ago
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unist utility to check if a node passes a test

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published 4.0.43 months ago
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Check if something is a Node.js stream

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published 2.0.02 years ago