889 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 1.0.52 months ago
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Determine if a value is an ES6 Symbol or not.

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published 1.0.33 months ago
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ES2015-compliant shim for Object.is - differentiates between -0 and +0

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published 1.0.22 months ago
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Description

Get the native type of a value.

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published 6.0.3a month ago
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Detect the file type of a Buffer/Uint8Array/ArrayBuffer

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published 14.1.24 days ago
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Is this an arguments object? It's a harder question than you think.

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published 1.0.4a year ago
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Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)

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published 2.1.15 months ago
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Check if a value is a plain object

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published 2.1.0a month ago
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Check if a URL is absolute

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published 3.0.35 months ago
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Returns `true` if the string is upper case only.

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published 2.0.12 months ago
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ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

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published 1.3.02 months ago
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Returns `true` if the string is lower case only

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published 2.0.12 months ago
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Returns true if an object was created by the `Object` constructor.

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published 3.0.010 months ago
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Returns true if the value is an object and not an array or null.

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published 4.0.010 months ago
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Check if a string or buffer is SVG

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published 4.2.1a month 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 2.0.12 months ago
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Check if something is a Node.js stream

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published 2.0.010 months 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 2.0.12 months ago
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Detect whether or not an object is a Typed Array

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published 1.0.05 years ago