.config/coc/extensions/node_modules/coc-prettier/node_modules/unset-value/node_modules/has-values/README.md

   1 # has-values [![NPM version](https://img.shields.io/npm/v/has-values.svg?style=flat)](https://www.npmjs.com/package/has-values) [![NPM downloads](https://img.shields.io/npm/dm/has-values.svg?style=flat)](https://npmjs.org/package/has-values) [![Build Status](https://img.shields.io/travis/jonschlinkert/has-values.svg?style=flat)](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 has-values --save
  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(0, true); // treat zero as a value
  31 //=> true
  32
  33 hasValue({a: 'a'}});
  34 //=> true
  35
  36 hasValue({}});
  37 //=> false
  38
  39 hasValue(['a']);
  40 //=> true
  41
  42 hasValue([]);
  43 //=> false
  44
  45 hasValue(function(foo) {}); // function length/arity
  46 //=> true
  47
  48 hasValue(function() {});
  49 //=> false
  50
  51 hasValue(true);
  52 hasValue(false);
  53 //=> true
  54 ```
  55
  56 ## isEmpty
  57
  58 To test for empty values, do:
  59
  60 ```js
  61 function isEmpty(o, isZero) {
  62   return !hasValue(o, isZero);
  63 }
  64 ```
  65
  66 ## Related projects
  67
  68 You might also be interested in these projects:
  69
  70 * [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://www.npmjs.com/package/has-value) | [homepage](https://github.com/jonschlinkert/has-value)
  71 * [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)
  72 * [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)
  73
  74 ## Contributing
  75
  76 Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/has-values/issues/new).
  77
  78 ## Building docs
  79
  80 Generate readme and API documentation with [verb](https://github.com/verbose/verb):
  81
  82 ```sh
  83 $ npm install verb && npm run docs
  84 ```
  85
  86 Or, if [verb](https://github.com/verbose/verb) is installed globally:
  87
  88 ```sh
  89 $ verb
  90 ```
  91
  92 ## Running tests
  93
  94 Install dev dependencies:
  95
  96 ```sh
  97 $ npm install -d && npm test
  98 ```
  99
 100 ## Author
 101
 102 **Jon Schlinkert**
 103
 104 * [github/jonschlinkert](https://github.com/jonschlinkert)
 105 * [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
 106
 107 ## License
 108
 109 Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
 110 Released under the [MIT license](https://github.com/jonschlinkert/has-values/blob/master/LICENSE).
 111
 112 ***
 113
 114 _This file was generated by [verb](https://github.com/verbose/verb), v, on March 27, 2016._