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3066 packages found
Get the native type of a value.
Check if something is a generator function
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Returns true if a value is a plain object, array or function.
Test if a value is a function.
Check that given value is `GeneratorFunction`
- check
- es2015
- es6
- es7
- function
- functions
- generator
- generatorfunction
- generators
- is
- is-function
- is-generator
- is-generator-function
- next
Return a function which tests if every element in an array passes a test condition.
Validates if a value is a function.
Return a function which tests if every element in an array-like object passes a test condition.
Provides calculation functions related to complex numbers.
Set of shortands of Object.prototype.toString for fast and simple type check
Check if something is an ES7 async function
Isomorphic, functional type-checking for Javascript
A function is a set of statements that performs a task or calculates a value.
- extra
- function
- after
- arity
- before
- flip
- once
- partial
- partialRight
- InvocationControl
- Resolver
- ARGUMENTS
- COMPARE
- FALSE
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Check whether a value is a `Generator` or `GeneratorFunction`. The `co` way, more strict checking. Always return boolean true or false, never null or undefined.
- check
- es2015
- es6
- es7
- function
- functions
- generator
- generatorfunction
- generators
- is
- is-function
- is-generator
- is-generator-function
- next
Type predicate functions for checking if a value is of a specific type or asserting that it is.
Check that given value is Generator
- check
- es2015
- es6
- es7
- function
- functions
- generator
- generatorfunction
- generators
- is
- is-function
- is-generator
- is-generator-function
- next
A utility to determine if a value is a function
[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im
- fast-deep-clone
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- lesscss
- forEach
- browserlist
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undefined is not a function and it's likely to remain so forever