README.md (2574B)
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 # isEmail 22 23 > Test if a value is an email address. 24 25 <section class="intro"> 26 27 </section> 28 29 <!-- /.intro --> 30 31 <section class="usage"> 32 33 ## Usage 34 35 ```javascript 36 var isEmail = require( '@stdlib/assert/is-email-address' ); 37 ``` 38 39 #### isEmail( value ) 40 41 Tests if a `value` is an [email address][validate-email-address]. 42 43 ```javascript 44 var bool = isEmail( 'beep@boop.com' ); 45 // returns true 46 ``` 47 48 </section> 49 50 <!-- /.usage --> 51 52 <section class="notes"> 53 54 ## Notes 55 56 - Validation is **not** rigorous, nor [should it be][validate-email-address]. **9** RFCs relate to email addresses, and accounting for all of them is a fool's errand. This module performs the simplest validation; i.e., requiring **at least** one `@` symbol. 57 - For rigorous validation, send a confirmation email. If the email bounces, consider the email invalid. 58 59 <!-- </notes --> 60 61 <section class="examples"> 62 63 ## Examples 64 65 <!-- eslint no-undef: "error" --> 66 67 ```javascript 68 var isEmail = require( '@stdlib/assert/is-email-address' ); 69 70 var bool; 71 72 bool = isEmail( 'beep@boop.com' ); 73 // returns true 74 75 bool = isEmail( 'beep' ); 76 // returns false 77 78 bool = isEmail( 'beep.com' ); 79 // returns false 80 81 bool = isEmail( null ); 82 // returns false 83 ``` 84 85 </section> 86 87 <!-- /.examples --> 88 89 * * * 90 91 <section class="cli"> 92 93 ## CLI 94 95 <section class="usage"> 96 97 ### Usage 98 99 ```text 100 Usage: is-email-address [options] [<string>] 101 102 Options: 103 104 -h, --help Print this message. 105 -V, --version Print the package version. 106 ``` 107 108 </section> 109 110 <!-- /.usage --> 111 112 <section class="examples"> 113 114 ### Examples 115 116 ```bash 117 $ is-email-address beep@boop.com 118 true 119 ``` 120 121 To use as a [standard stream][standard-streams], 122 123 ```bash 124 $ echo -n 'beep@boop.com' | is-email 125 true 126 ``` 127 128 </section> 129 130 <!-- /.examples --> 131 132 </section> 133 134 <!-- /.cli --> 135 136 <section class="links"> 137 138 [validate-email-address]: http://davidcel.is/posts/stop-validating-email-addresses-with-regex/ 139 140 [standard-streams]: https://en.wikipedia.org/wiki/Standard_streams 141 142 </section> 143 144 <!-- /.links -->