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# err-code [![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url] [npm-url]:https://npmjs.org/package/err-code [downloads-image]:http://img.shields.io/npm/dm/err-code.svg [npm-image]:http://img.shields.io/npm/v/err-code.svg [travis-url]:https://travis-ci.org/IndigoUnited/js-err-code [travis-image]:http://img.shields.io/travis/IndigoUnited/js-err-code/master.svg [david-dm-url]:https://david-dm.org/IndigoUnited/js-err-code [david-dm-image]:https://img.shields.io/david/IndigoUnited/js-err-code.svg [david-dm-dev-url]:https://david-dm.org/IndigoUnited/js-err-code#info=devDependencies [david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/js-err-code.svg Create new error instances with a code and additional properties. ## Installation `$ npm install err-code` - `NPM` `$ bower install err-code` - `bower` The browser file is named index.umd.js which supports CommonJS, AMD and globals (errCode). ## Why I find myself doing this repeatedly: ```js var err = new Error('My message'); err.code = 'SOMECODE'; err.detail = 'Additional information about the error'; throw err; ``` ## Usage Simple usage. ```js var errcode = require('err-code'); // fill error with message + code throw errcode(new Error('My message'), 'ESOMECODE'); // fill error with message + code + props throw errcode(new Error('My message'), 'ESOMECODE', { detail: 'Additional information about the error' }); // fill error with message + props throw errcode(new Error('My message'), { detail: 'Additional information about the error' }); // You may also pass a string in the first argument and an error will be automatically created // for you, though the stack trace will contain err-code in it. // create error with message + code throw errcode('My message', 'ESOMECODE'); // create error with message + code + props throw errcode('My message', 'ESOMECODE', { detail: 'Additional information about the error' }); // create error with message + props throw errcode('My message', { detail: 'Additional information about the error' }); ``` ## Tests `$ npm test` ## License Released under the [MIT License](http://www.opensource.org/licenses/mit-license.php).
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