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162 packages found
Runtime library to validate data against TypeScript interfaces
A simple and composable way to validate data in JavaScript (and TypeScript).
Superfast runtime validators with only one line
Binary wrapper for Flow - A static type checker for JavaScript
A simple and composable way to validate data in JavaScript (and TypeScript).
Some utilities to check any type of values
Detect and validate file types by their signatures (✨magic numbers✨)
Superfast runtime validators with only one line
A simple and composable way to validate data in JavaScript (and TypeScript).
A simple, powerful and flexible runtime type checker for TypeScript.
Zero dependencies image size checker.
Superfast runtime validators with only one line
A simple and composable way to validate data in JavaScript (and TypeScript).
The package for check some data in typescript and javascript.
Binary wrapper for Flow - A static type checker for JavaScript
A type checking library where each exported function returns either true or false and does not throw. Also added tests.
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
Superfast runtime validators with only one line
A package that helps validate data at runtime