# @babel/plugin-transform-member-expression-literals > Ensure that reserved words are quoted in property accesses ## Example **In** ```javascript foo.catch; ``` **Out** ```javascript foo["catch"]; ``` ## Installation ```sh npm install --save-dev @babel/plugin-transform-member-expression-literals ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "plugins": ["@babel/plugin-transform-member-expression-literals"] } ``` ### Via CLI ```sh babel --plugins @babel/plugin-transform-member-expression-literals script.js ``` ### Via Node API ```javascript require("@babel/core").transform("code", { plugins: ["@babel/plugin-transform-member-expression-literals"] }); ```