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171 packages found
Test if a value is an array-like object containing only symbols.
Test if a value is an array-like object containing only nonpositive numbers.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- typed
- array
- typed array
- is
- istypedarray
- istyped
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Test if a value is an array-like object containing only nonnegative numbers.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- typed
- array
- typed array
- is
- istypedarray
- istyped
- View more
Test if a value is an array-like object supporting the accessor (get/set) protocol.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- typed array
- collection
- float64array
- float32array
- int32array
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A collection of JavaScript type checks.
JavaScript library to check data types
- types
- type
- check
- type-check
- type-checker
- typechecker
- isBoolean
- isObject
- isNull
- isDate
- isFunction
- isRegExp
- isArray
- isNumber
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define if a given input is an array
implements a simple pub/sub channel
Simple type checker in JavaScript.
- utils
- util
- type checking
- type checker
- type
- checker
- isAlpha
- isAlphanumeric
- isArguments
- isArray
- isBoolean
- isDate
- isDecimal
- isDefined
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Verify if a given object is not an array
Provides a collection of Javascript utilties.
TypeScript typeof utility helper with no dependencies.
- typescript
- util
- typeof
- type guards
- isArray
- isBase64
- isBoolean
- isDate
- isDateValid
- isDefined
- isError
- isFunction
- isGuid
- isInfinity
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Additional ESLint rules.
A very simple "typeof" detection
The `util.is*` functions introduced in Node v0.12.
The `util.is*` functions introduced in Node v0.12. Now with React Native support.
Simple and light-weight JavaScript type checker that brings convenience!
- is-array
- isArray
- is-bigint
- isBigint
- is-blob
- isBlob
- is-boolean
- isBoolean
- is-date
- isDate
- is-error
- isError
- is-file
- isFile
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A utility function to fix and extend the built-in ''typeof'' operator of JavaScript.