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551 packages found
Check if an URL is a valid HTTP URL.
Convert strings to boolean.
Consumes a defaults object with booleans, generates all possible variations of it
Propositional Satisfiability Checker
cast objects, arrays, numbers strings and booleans to buffers
unique is a function that remove any duplicates from an array.
Script that parses a boolean query to an array with all the possibilities. IE: (a AND (b OR c)) -> [[a, b],[a, c]]
List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc.
- bool
- boolean
- buffer
- check
- checking
- error
- is
- is-boolean
- is-buffer
- is-error
- is-promise
- is-stream
- json
- kind
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Normalizes string JavaScript values to have real type (so "123" becomes number 123 etc).
Converts strings representing an on/off-state to booleans
Widget for editing boolean values in Decap CMS.
A library for checking and casting types.
Transform and convert any value into boolean
Boolean constructor.
retrieve the type of your value by using constructors when possible
A random data generator
- random
- shortid
- data
- random user
- random image
- 500px
- randomuser
- id
- password
- random number
- random id
- otelnov
- lorem ipsum
- random text
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Check if a given value is empty in JS extending his "truthy" and "falsy" nature
compare the type of your value with one or several types
- typeof
- types
- instanceof
- type-of
- test
- check
- typeof-in
- string
- constructor
- name
- number
- object
- array
- function
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An expressive type testing library