/** * Copyright (c) 2013-present, Facebook, Inc. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @providesModule hyphenate * @typechecks */ const _uppercasePattern = /([A-Z])/g; /** * Hyphenates a camelcased string, for example: * * > hyphenate('backgroundColor') * < "background-color" * * For CSS style names, use `hyphenateStyleName` instead which works properly * with all vendor prefixes, including `ms`. * * @param {string} string * @return {string} */ function hyphenate(string) { return string.replace(_uppercasePattern, '-$1').toLowerCase(); } module.exports = hyphenate;