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6000 packages found
Test if a value is a function.
Check if a Buffer/Uint8Array is a GZIP file
Test if a value is a plain object.
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- less mixins
- concatMap
- stdlib
- look-up
- helpers
- Observables
- stable
- WebSockets
- watcher
- jwt
- time
- ES5
- bundling
- sort
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Get the type of something. Seriously.
Check if a value is a regular expression
Get the type of something. Seriously.
Test if a double-precision floating-point numeric value is infinite.
- stdlib
- stdmath
- assertion
- assert
- utilities
- utility
- utils
- util
- math
- mathematics
- ieee754
- floating-point
- float
- double
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detect file extensions, check if text or binary file, or get list of text or binary file extensions
- binary
- extensions
- extension
- file
- path
- check
- detect
- is
- browser
- deno
- deno-edition
- deno-entry
- denoland
- es2022
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Check if a value is a Fetch network error
ESLint shareable config for TypeScript to be used with eslint-config-xo
Type checking for tsconfig.json
A small tool for validating arguments in JavaScript
Test if a value is a boolean.
simple script to check type
Easily check the structure of any javascript object!
TypeConformity is a powerful TypeScript/JavaScript library for validating types of values at runtime, enforcing data integrity and preventing erroneous or unexpected data in your systems.
Test if a value is a number.
- weakset
- is
- cors
- view
- rm -fr
- postcss-plugin
- patch
- ES2023
- lru
- performance
- collection.es6
- Float32Array
- eslintplugin
- generics
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Determine if a filename and/or buffer is text or binary. Smarter detection than the other solutions.