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Check if a Buffer/Uint8Array is a BMP image
Check if a Buffer/Uint8Array is a PSD image
The javascript library to get or check the type of a given variable.
The module has JS functions to check all imports or required modules and check if the file is a ES Module or a CJS/ JS Module or Script
- require
- cache
- uncache
- uncached
- module
- fresh
- fetch
- all
- imports
- requires
- es imports
- cjs import
- cjs require
- mjs import
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Check if a Buffer/Uint8Array is a JPEG XR image
Utility that allows to check that an object validates a predefined contract
- type
- checker
- validator
- typechecker
- decorator
- typescript
- reflection
- entity
- validation
- casting
- dynamic
- instantiation
Check something against an array of types.
A tester to check expected type errors
Check type for array
Get the native type of a value.
check if something is a POJO (plain old javascript object)
Check the type coverage of any TypeScript project with this easy npm package
A function check real typeof value in JavaScript
Returns true if the value is an object and not an array or null.
micro type checker that unifies 2 ways to check type in javascript
型・インスタンスなどの確認
Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.
A tiny javascript type testing tool
Detect the file type of a file, stream, or data
Returns true if a value has the characteristics of a valid JavaScript data descriptor.