输入
foo.catch;
输出
foo["catch"];
npm install --save-dev babel-plugin-transform-es3-member-expression-literals
.babelrc（推荐）.babelrc
{
"plugins": ["transform-es3-member-expression-literals"]
}
babel --plugins transform-es3-member-expression-literals script.js
require("babel-core").transform("code", {
plugins: ["transform-es3-member-expression-literals"]
});