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1760 packages found
Test if an object's own property is enumerable.
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- WeakSet
- extra
- emoji
- exec
- let
- authentication
- preprocessor
- nested css
- handlers
- ECMAScript 3
- typedarrays
- ES2016
- nodejs
- harmony
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A runtime assertion and contract programming tool
Testing and assertion library with friendly BDD syntax — awesome.must.be.true(). Many expressive matchers and is test runner and framework agnostic. Follows RFC 2119 with its use of MUST. Good and well tested stuff.
Test if a value is iterator-like.
Test if a finite numeric value is an even number.
Test if a value is a complex number-like object.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- iscomplex
- complex
- complex64
- complex128
- 64-bit
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Assertion library written in TypeScript
A lightweight strongly-typed assert.ok
- simpleassert
- simple-assert-ok
- assert
- typed assert
- typed assert-ok
- assert-ok
- assert-ok helper
- assert helper
- assertion
Adding .also chain in base library of chai-as-promised
Asynchronous assertion library for fast, high-level behavioral testing
Test if a value is an array-like object containing only nonnegative integers.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- typed
- array
- typed array
- is
- istypedarray
- istyped
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Test if a value is a Complex64Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- base
- array
- typed array
- collection
- complex64array
- is
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Test if a value is a Complex128Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- base
- array
- typed array
- collection
- complex128array
- is
- View more
Runtime type checking and type assertion library for Node and the browser
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
- array
- assert
- assertion
- async
- async function
- async-function
- asyncFunction
- bool
- boolean
- browser
- check
- check-type
- checking
- class
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Chai plugin for redux-mock-store
Test if a value is null.
Extend Chai with assertions for Javascript generators
HTML assertions for Chai.