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webdash-readme-preview

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<!-- @license Copyright (c) 2017 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as part of the polymer project is also subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt --> <link rel="import" href="boot.html"> <script> (function() { 'use strict'; const caseMap = {}; const DASH_TO_CAMEL = /-[a-z]/g; const CAMEL_TO_DASH = /([A-Z])/g; /** * Module with utilities for converting between "dash-case" and "camelCase" * identifiers. * * @namespace * @memberof Polymer * @summary Module that provides utilities for converting between "dash-case" * and "camelCase". */ const CaseMap = { /** * Converts "dash-case" identifier (e.g. `foo-bar-baz`) to "camelCase" * (e.g. `fooBarBaz`). * * @memberof Polymer.CaseMap * @param {string} dash Dash-case identifier * @return {string} Camel-case representation of the identifier */ dashToCamelCase(dash) { return caseMap[dash] || ( caseMap[dash] = dash.indexOf('-') < 0 ? dash : dash.replace(DASH_TO_CAMEL, (m) => m[1].toUpperCase() ) ); }, /** * Converts "camelCase" identifier (e.g. `fooBarBaz`) to "dash-case" * (e.g. `foo-bar-baz`). * * @memberof Polymer.CaseMap * @param {string} camel Camel-case identifier * @return {string} Dash-case representation of the identifier */ camelToDashCase(camel) { return caseMap[camel] || ( caseMap[camel] = camel.replace(CAMEL_TO_DASH, '-$1').toLowerCase() ); } }; Polymer.CaseMap = CaseMap; })(); </script>