1  # has-values [![NPM version](https://img.shields.io/npm/v/has-values.svg?style=flat)](https://www.npmjs.com/package/has-values) [![NPM monthly downloads](https://img.shields.io/npm/dm/has-values.svg?style=flat)](https://npmjs.org/package/has-values) [![NPM total downloads](https://img.shields.io/npm/dt/has-values.svg?style=flat)](https://npmjs.org/package/has-values) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/has-values.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/has-values)
  2  
  3  > Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
  4  
  5  ## Install
  6  
  7  Install with [npm](https://www.npmjs.com/):
  8  
  9  ```sh
 10  $ npm install --save has-values
 11  ```
 12  
 13  ## Usage
 14  
 15  ```js
 16  var hasValue = require('has-values');
 17  
 18  hasValue('a');
 19  //=> true
 20  
 21  hasValue('');
 22  //=> false
 23  
 24  hasValue(1);
 25  //=> true
 26  
 27  hasValue(0);
 28  //=> false
 29  
 30  hasValue({a: 'a'}});
 31  //=> true
 32  
 33  hasValue({});
 34  hasValue({foo: undefined});
 35  //=> false
 36  
 37  hasValue({foo: null});
 38  //=> true
 39  
 40  hasValue(['a']);
 41  //=> true
 42  
 43  hasValue([]);
 44  hasValue([[], []]);
 45  hasValue([[[]]]);
 46  //=> false
 47  
 48  hasValue(['foo']);
 49  hasValue([0]);
 50  //=> true
 51  
 52  hasValue(function(foo) {}); 
 53  //=> true
 54  
 55  hasValue(function() {});
 56  //=> true
 57  
 58  hasValue(true);
 59  //=> true
 60  
 61  hasValue(false);
 62  //=> true
 63  ```
 64  
 65  ## isEmpty
 66  
 67  To test for empty values, do:
 68  
 69  ```js
 70  function isEmpty(o, isZero) {
 71    return !hasValue(o, isZero);
 72  }
 73  ```
 74  
 75  ## Release history
 76  
 77  ### v1.0.0
 78  
 79  * `zero` always returns true
 80  * `array` now recurses, so that an array of empty arrays will return `false`
 81  * `null` now returns true
 82  
 83  ## About
 84  
 85  ### Related projects
 86  
 87  * [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value "Returns true if a value exists, false if empty. Works with deeply nested values using object paths.")
 88  * [is-number](https://www.npmjs.com/package/is-number): Returns true if the value is a number. comprehensive tests. | [homepage](https://github.com/jonschlinkert/is-number "Returns true if the value is a number. comprehensive tests.")
 89  * [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.")
 90  * [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.")
 91  * [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.")
 92  
 93  ### Contributing
 94  
 95  Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
 96  
 97  ### Building docs
 98  
 99  _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
100  
101  To generate the readme, run the following command:
102  
103  ```sh
104  $ npm install -g verbose/verb#dev verb-generate-readme && verb
105  ```
106  
107  ### Running tests
108  
109  Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
110  
111  ```sh
112  $ npm install && npm test
113  ```
114  
115  ### Author
116  
117  **Jon Schlinkert**
118  
119  * [github/jonschlinkert](https://github.com/jonschlinkert)
120  * [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
121  
122  ### License
123  
124  Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
125  Released under the [MIT License](LICENSE).
126  
127  ***
128  
129  _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 19, 2017._