166 packages found
Get the native type of a value.
Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
Returns true if a value has the characteristics of a valid JavaScript data descriptor.
Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.
Check if a value is a plain object
Type check values
Returns true if an object was created by the `Object` constructor, or Object.create(null).
Function argument validation for humans
- type
- types
- check
- checking
- guard
- guards
- assert
- assertion
- predicate
- predicates
- is
- validate
- validation
- utility
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Strong Dynamically Typed Object Modeling for JavaScript
- typed
- types
- typing
- type-checking
- dynamic
- strong
- model
- definition
- object
- assertion
- inheritance
- composition
- structures
- proxy
Returns true if the value is an object and not an array or null.
Test if a value is a string.
Returns true if a value exists, false if empty. Works with deeply nested values using object paths.
Test if a value is a plain object.
Test if a value is a boolean.
Isomorphic, functional type-checking for Javascript
Test if a value is a number.
Test if a value is object-like.
Test if a value is an object.
Determine the specification defined classification of an object.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- type
- typeof
- native
- class
- classification
- specification
- spec
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