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