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97 packages found
Check if a given value is one of the ESLint severity level specifiers
Boolean package provides functionality to generate a fake boolean value.
A helper function for the FalseJS library that checks if a value is true.
A simple function to check if a piece of data is truthy. JavaScript version.
- true
- false
- truthy
- falsy
- javascript
- validation
- checking
- data validation
- object validation
- array validation
- set validation
- map validation
Remove false value from array
Utilities and types to help with simple Boolean checks
Tests a value’s type against a string like 'positive integer' or 'non-empty map'.
A package that check if an operation, usually functions call, is successful. It returns true or false depending on the operation
Node.js FALSE interpreter
TypeScript generics to work with boolean types
The missing parseBool function we all secretly want
Helps you deny the existence of specified truthy values (e.g. 'someString', aParticularObject)
Returns true if the argument is a function; false otherwise.
Returns true if the argument is a string; false otherwise.
Common types, type guards and type checkers.
THE BRINGER OF TRUTH! or false
React js empty component that returns nothing. Not even <noscript>
empty js function like empty() in php
Helps you confirm the existence of specified falsy values (e.g. 0)
Convenience for working with `writable: false` object properties.