is-empty

is-empty

Check whether a value is empty.

Installation

$ npm install is-empty
$ npm test

Example

var empty = require('is-empty');

empty([]);              // true
empty({});              // true
empty('');              // true
empty(0);               // true
empty(function(){});    // true
empty(null);            // true
empty(undefined);       // true
empty(new Map());       // true
empty(new Set());       // true
empty(new Error());     // true

empty(true);            // false
empty(false);           // false
empty(['a', 'b']);      // false
empty({ a: 'b' });      // false
empty('string');        // false
empty(42);              // false
empty(function(a,b){}); // false
empty(new Map([['key', 'value']])); // false
empty(new Set([1]));    // false
empty(new Error('fail'))// false

API

isEmpty(value)

Check whether value is empty.

License

MIT

Similar packages

Other packages similar to is-empty

lodash.isempty

Lodash's isEmpty function is a part of the Lodash library, which is a comprehensive utility library for JavaScript. It provides similar functionality to is-empty, allowing you to check if a value is empty. However, Lodash is a larger library with many more utilities, which might be overkill if you only need the isEmpty functionality.

validator

The validator package is primarily used for string validation and sanitization, but it includes an isEmpty function to check if a string is empty. While it offers similar functionality for strings, it does not provide the same breadth of checks for other data types as is-empty does.

underscore

Underscore is another utility library similar to Lodash. It includes an isEmpty function that checks if an object, array, or other collection is empty. Like Lodash, it offers a wide range of utilities beyond just checking for emptiness, making it a more heavyweight option compared to is-empty.