输入
var string = "foo💩bar";
var match = string.match(/foo(.)bar/u);
输出
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/);
npm install --save-dev babel-plugin-transform-es2015-unicode-regex
.babelrc（推荐）.babelrc
{
"plugins": ["transform-es2015-unicode-regex"]
}
babel --plugins transform-es2015-unicode-regex script.js
require("babel-core").transform("code", {
plugins: ["transform-es2015-unicode-regex"]
});