Search results
3713 packages found
Type check values
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
- View more
Detect whether or not an object is a Typed Array
mdast utility to check if a node is phrasing content
hast utility to check if a node is a (certain) element
unist utility to check if a node passes a test
Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`.
Test if a double-precision floating-point numeric value is NaN.
- stdlib
- stdmath
- assertion
- assert
- utilities
- utility
- utils
- util
- math
- mathematics
- ieee754
- floating-point
- float
- number
- View more
Neo-Async is a drop-in replacement for Async, it almost fully covers its functionality and runs faster
Test if a value is a function.
Test if a value is a plain object.
Browser-friendly enhanced util fully compatible with standard node.js
Test if a value is a string.
Test if a value is a boolean.
Test if a value is a number.
The `util.is*` functions introduced in Node v0.12.
Test if a value is an array.
Test if a value is a Uint8Array.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- uint8array
- uint8
- unsigned
- integer
- int
- uint
- View more
Test if a value is a regular expression string.
- stdlib
- stdassert
- assertion
- assert
- utils
- util
- utilities
- utility
- isregexp
- regular expression
- regexp
- regex
- regular
- expression
- View more