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1635 packages found
Is the current JS environment a touch device?
Detect whether or not an object is a Typed Array
Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)
ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.
Are these two values conceptually equal?
unist utility to check if a node passes a test
Detect the file type of a Buffer/Uint8Array/ArrayBuffer
Type check values
Check if a value is a plain object
Determines if an object can be used as an array
Check if your package was installed globally
Get the native type of a value.
Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.
Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet
Check if a file path is a binary file
Standard assertion utilities.
- stdlib
- stdassert
- assertion
- assert
- expectation
- expect
- utilities
- utility
- utils
- util
- test
- check
- validate
- validation
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Check if the process is running inside a Docker container
Returns true if the value is an object and not an array or null.
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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A pseudo-class for matching elements in a selector list