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51 packages found
Test if a value is an array-like object of booleans.
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
- View more
Validates if a value is a boolean primitive.
Test if a value is a JavaScript primitive.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- valid
- primitive
- string
- number
- null
- undefined
- View more
Curried TypeScript type guards for primitive types and classes
- TypeScript
- type guards
- type
- guard
- isBoolean
- isNumber
- isString
- isSymbol
- isNull
- isUndefined
- isPrimitive
- isNonPrimitive
- is
- isLike
- View more
Boolean indicating if the current process is running on Darwin.
Test if a value is a JavaScript boxed primitive.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- valid
- primitive
- object
- string
- number
- boolean
- View more
Test if a value is an array-like object containing only JavaScript primitives.
Validates if a value is a boolean.
JavaScript Isser library.
Validates if a value is a boolean array.
Validates if a value is an array of boolean primitives.
- validate.io
- validate
- validation
- validator
- valid
- boolean
- bool
- array
- booleanarray
- is
- isarray
- isbooleanarray
- primitive
Module for type checking in javascript.
Returns `true` if text is lower case only
Returns `true` if text is upper case only.
Returns a boolean indicating if the current process is running on Windows.
Determine if a value is a boolean
Determine if a value is a boolean
Simple API for managing options in JavaScript applications.
- add
- boolean
- cache
- config
- configuration
- default
- defaults
- define
- disable
- disabled
- emit
- enable
- enabled
- event
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Validates if a value is a JavaScript primitive.