1248 packages found

    Description

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

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    published 1.1.37 days ago
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    ES2015-compliant shim for Object.is - differentiates between -0 and +0

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    published 1.1.53 months ago
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    Is this value negative zero? === will lie to you

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    published 2.0.15 months ago
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    Is this an arguments object? It's a harder question than you think.

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    published 1.1.05 months ago
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    Description

    Detect the file type of a Buffer/Uint8Array/ArrayBuffer

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    published 16.4.09 days 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 5.0.08 months ago
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    ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

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    published 1.3.25 months ago
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    Is this value an ES BigInt?

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    published 1.0.210 days ago
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    Description

    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 1.1.53 months ago
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    Check if a value is a plain object

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    published 4.0.0a month ago
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    Check if a path is a file, directory, or symlink

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    published 5.0.04 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 2.0.25 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 2.0.25 months ago
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    Description

    Detect whether or not an object is a Typed Array

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    published 1.0.06 years ago
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    Description

    Get the native type of a value.

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    published 6.0.3a year ago
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    Description

    Returns `true` if the string is upper case only.

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    published 2.0.25 months ago
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    Returns `true` if the string is lower case only

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    published 2.0.25 months ago
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    Description

    Check if a value is an object

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    published 3.0.0a month ago
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    Description

    Check if the character represented by a given Unicode code point is fullwidth

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    published 4.0.0a month ago
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