README.md (2074B)
1 <!-- 2 3 @license Apache-2.0 4 5 Copyright (c) 2018 The Stdlib Authors. 6 7 Licensed under the Apache License, Version 2.0 (the "License"); 8 you may not use this file except in compliance with the License. 9 You may obtain a copy of the License at 10 11 http://www.apache.org/licenses/LICENSE-2.0 12 13 Unless required by applicable law or agreed to in writing, software 14 distributed under the License is distributed on an "AS IS" BASIS, 15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 See the License for the specific language governing permissions and 17 limitations under the License. 18 19 --> 20 21 # isTruthy 22 23 > Test if a value is truthy. 24 25 <section class="usage"> 26 27 ## Usage 28 29 ```javascript 30 var isTruthy = require( '@stdlib/assert/is-truthy' ); 31 ``` 32 33 #### isTruthy( value ) 34 35 Tests if a `value` is a value which translates to `true` when evaluated in a boolean context. 36 37 ```javascript 38 var bool = isTruthy( true ); 39 // returns true 40 41 bool = isTruthy( [] ); 42 // returns true 43 44 bool = isTruthy( false ); 45 // returns false 46 47 bool = isTruthy( '' ); 48 // returns false 49 50 bool = isTruthy( 0 ); 51 // returns false 52 53 bool = isTruthy( NaN ); 54 // returns false 55 56 bool = isTruthy( null ); 57 // returns false 58 59 bool = isTruthy( void 0 ); 60 // returns false 61 ``` 62 63 </section> 64 65 <!-- /.usage --> 66 67 <section class="examples"> 68 69 ## Examples 70 71 <!-- eslint-disable no-empty-function, no-restricted-syntax --> 72 73 <!-- eslint no-undef: "error" --> 74 75 ```javascript 76 var isTruthy = require( '@stdlib/assert/is-truthy' ); 77 78 var bool = isTruthy( true ); 79 // returns true 80 81 bool = isTruthy( 'beep' ); 82 // returns true 83 84 bool = isTruthy( 5 ); 85 // returns true 86 87 bool = isTruthy( [] ); 88 // returns true 89 90 bool = isTruthy( {} ); 91 // returns true 92 93 bool = isTruthy( function foo() {} ); 94 // returns true 95 96 bool = isTruthy( false ); 97 // returns false 98 99 bool = isTruthy( 0 ); 100 // returns false 101 102 bool = isTruthy( NaN ); 103 // returns false 104 105 bool = isTruthy( '' ); 106 // returns false 107 108 bool = isTruthy( void 0 ); 109 // returns false 110 111 bool = isTruthy( null ); 112 // returns false 113 ``` 114 115 </section> 116 117 <!-- /.examples --> 118 119 <section class="links"> 120 121 </section> 122 123 <!-- /.links -->