383 packages found

Determine if the JS environment has Symbol support. Supports spec, or shams.

published 1.0.3 a year ago
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Get the native type of a value.

published 6.0.3 3 years ago
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Improved typeof detection for node.js and the browser.

published 4.0.8 5 years ago
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Determine if the JS environment has BigInt support.

published 1.0.2 a year 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 5 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 3 years ago
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Function argument validation for humans

published 1.1.1 4 months ago
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Checks whether provided parameter looks like a number

published 1.0.8 6 years ago
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Returns true if the value is an object and not an array or null.

published 4.0.0 4 years ago
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Cross-browser type assertions (less broken typeof)

published 1.2.1 7 years ago
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complete type checking for node

published 1.4.0 a month ago
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Determine and test types using constructor or {}.toString

published 3.5.1 6 years ago
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Detect native Symbol.toStringTag support.

published 0.0.9 a year ago
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type inferer

published 3.2.0 6 months ago
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Determine the specification defined classification of an object.

published 0.0.8 a year ago
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A proper typeof that works with primitives, built-in value objects and those from other execution contexts.

published 2.0.0 8 years ago
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Deprecated. Utilities for ES3, most of which have been adopted or superseded in ES5.1. Adapted from Douglas Crockford's Remedial JavaScript

published 1.0.8 5 years ago
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A simple set of functions that return a boolean.

published 3.0.1 6 months ago
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