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kind-of

Get the native type of a value.

doowb
published version 6.0.3, 5 years ago2047 dependents licensed under $MIT
674,417,324

has-symbols

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

ljharb
published version 1.0.3, 3 years ago2138 dependents licensed under $MIT
227,338,175

is-plain-object

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

trysound
published version 5.0.0, 4 years ago2542 dependents licensed under $MIT
205,865,760

is-number

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

jonschlinkert
published version 7.0.0, 6 years ago2776 dependents licensed under $MIT
364,450,159

isobject

Returns true if the value is an object and not an array or null.

trysound
published version 4.0.0, 6 years ago1680 dependents licensed under $MIT
270,015,207

type-detect

Improved typeof detection for node.js and the browser.

chaijs
published version 4.1.0, 4 months ago1352 dependents licensed under $MIT
135,004,056

has-bigints

Determine if the JS environment has BigInt support.

ljharb
published version 1.0.2, 3 years ago1119 dependents licensed under $MIT
137,292,155

@sindresorhus/is

Type check values

sindresorhus
published version 7.0.1, 3 months ago318 dependents licensed under $MIT
84,698,912

is-primitive

Returns `true` if the value is a primitive.

jonschlinkert
published version 3.0.1, 6 years ago255 dependents licensed under $MIT
17,833,101

koalas

Coalesce for JavaScript. Returns the first value that is not undefined or null.

doowb
published version 1.0.2, 8 years ago23 dependents licensed under $MIT
10,951,436

component-type

Type assertions aka less-broken `typeof`

sindresorhus
published version 2.0.0, a year ago150 dependents licensed under $MIT
5,589,359

is-number-like

Checks whether provided parameter looks like a number

vigour-io
published version 1.0.8, 7 years ago27 dependents licensed under $ISC
5,367,939

ow

Function argument validation for humans

sindresorhus
published version 2.0.0, 7 months ago509 dependents licensed under $MIT
3,799,624

@stdlib/assert-is-object-like

Test if a value is object-like.

stdlib-bot
published version 0.2.2, 4 months ago15 dependents licensed under $Apache-2.0
1,777,682

is-lite

A tiny javascript type testing tool

gilbarbara
published version 1.2.1, a year ago69 dependents licensed under $MIT
2,422,383

is-type-of

complete type checking for node

fengmk2
published version 2.1.0, a year ago492 dependents licensed under $MIT
1,981,787

@stdlib/utils-constructor-name

Determine the name of a value's constructor.

stdlib-bot
published version 0.2.2, 4 months ago17 dependents licensed under $Apache-2.0
1,709,178

typeof-article

Get the native JavaScript type of a value, preceded by the appropriate indefinite article (either `a` or `an`), for use in error messages.

jonschlinkert
published version 0.1.1, 8 years ago4 dependents licensed under $MIT
1,281,838

@stdlib/assert-has-tostringtag-support

Detect native Symbol.toStringTag support.

stdlib-bot
published version 0.2.2, 4 months ago7 dependents licensed under $Apache-2.0
1,762,547

@stdlib/utils-native-class

Determine the specification defined classification of an object.

stdlib-bot
published version 0.2.2, 4 months ago31 dependents licensed under $Apache-2.0
1,746,445