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75 packages found
Validates if a value is null.
Check if the required properties are set, the easy way!
Perform easy type-checks with a simple type assertion.
- perform
- easy
- type-checks
- simple
- type
- assertion
- constructors
- expected
- type's
- accepted
- constructor
- null
- evaluate
- asserttype
Utilities and types to help with simple Boolean checks
Validation utilities.
- validate.io
- validator
- validation
- validate
- valid
- is
- isvalid
- check
- typed
- assert
- expect
- api
- string
- primitive
- View more
checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN
Common types, type guards and type checkers.
2 functions that check if argument is undefined or null
To check the data is empty or not. And also check the type of object wheater Array, Object, Function, Number, String or Boolean
- javascript
- node.js
- react.js
- angular.js
- vue.js
- array
- boolean
- check
- deep
- empty
- function
- has
- hasOwn
- is-empty
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This library is to check for null and undefined values in JSON objects
- object
- nullcheck
- null
- deep
- deep-check
- null-check
- boolean
- empty
- nested
- is-null
- undefined
- is-undefined
- isNull
- isUndefined
Checks whether a given string is null or empty in Javascript (node).
JavaScript Package for checking is variable empty,undefined or null
Checkout whether a given string is null or empty
A collection of utilities dealing with object
- check
- is
- is-object
- isobject
- to-object
- toobject
- javascript
- kind
- kind-of
- object
- type
- typeof
- instanceof
- value
- View more
Nullish checker
Check does the given Javascript Object is a null.
Guard against null and undefined values
Check does the given Javascript Object is a null.
The package provides methods to check whether a JSON object or a JSON array is empty or not. - The package considers an **object** empty when it is `null`, `undefined` or has no keys. - The package considers an **array** empty when it is `null`, `undefine
Undefined or Null Checker.