# babel-plugin-transform-es2015-unicode-regex > Compile ES2015 unicode regex to ES5 ## Example **In** ```js var string = "foo💩bar"; var match = string.match(/foo(.)bar/u); ``` **Out** ```js var string = "foo💩bar"; var match = string.match(/foo((?:[\0-\t\x0B\f\x0E-\u2027\u202A-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]))bar/); ``` ## Installation ```sh npm install --save-dev babel-plugin-transform-es2015-unicode-regex ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "plugins": ["transform-es2015-unicode-regex"] } ``` ### Via CLI ```sh babel --plugins transform-es2015-unicode-regex script.js ``` ### Via Node API ```javascript require("babel-core").transform("code", { plugins: ["transform-es2015-unicode-regex"] }); ```