Found 19 packages
Check if a path is a file, directory, or symlink
Is this an arguments object? It's a harder question than you think.
Is this an ES BigInt value?
Check if the character represented by a given Unicode code point is fullwidth
Is this value a JS ArrayBuffer? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.
Is this value a JS regex?
Is this an ES6 Symbol value?
Check if something is a Node.js stream
Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.
Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)
Check if the process is running inside a Docker container
Check if a file path is a binary file
Type check values
Is this value a JS SharedArrayBuffer? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Detect the file type of a file, stream, or data
utility to check if a node passes a test
Check if an object can be used like an Array