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137 packages found
Get the native type of a value.
Isomorphic, functional type-checking for Javascript
Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
Returns true if a value exists, false if empty. Works with deeply nested values using object paths.
Consumes a defaults object with booleans, generates all possible variations of it
BooleanArray.
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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Reinterpret a BooleanArray as a Uint8Array.
Boolean (Typed Array) & Set of numbers. Very Fast! Greater 'selection' in compression and 2D drawing. Only around 16 kB.
- Boolean Array
- BitArray
- Array
- SetFixed
- compression
- indexing
- drawing
- Set
- Boolean
- binary
- selection
- light
- fast
- performance
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Test if a value is an array-like object of booleans.
Test if a value is an array-like object containing only JavaScript primitives.
Test if a value is a BooleanArray.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- booleanarray
- boolean
- typed
- typed array
- typed-array
- array
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Expression Evaluation
Convert any value into a boolean value.
Takes any JavaScript data type or object as an input and returns a string describing the type of the input.
Parse dotenv files for Boolean, Array, and Number variable types, built for CrocodileJS
TypeScript static methods to validate primitive and array types
- primitive
- types
- TypeScript
- string
- boolean
- number
- ArrayBoolean
- ArrayNumber
- ArrayObject
- ArrayString
- TypeBool
- TypeClass
- TypeNumber
- TypeString
Check type of a variable, compare two values or objects.
- type checker
- function
- date
- class
- object
- object with keys
- object properties
- string
- number
- boolean
- array
- primitive
- isEqual
- equal
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A robust micro library for type checking. Defers to constructs' internal `[[Class]]` property rather than duck typing for excellent type detection and to avoid triggering false positives.
A JavaScript library for generating arrays with various data types. Easily create arrays containing random numbers, strings, boolean values, and objects. Suitable for testing, populating, and creating examples.