# babel-plugin-transform-charcodes > Replace charcodes AOT ## Examples ### Constants in: ```js import * as charcodes from "charcodes" charcodes.space ``` out: ```js 32 ``` ### Functions in: ```js import * as charcodes from "charcodes" (charcodes.isDigit(1)) ``` out: ```js (function isDigit(code) { return code >= 48 && code <= 57; }(1)) ``` ## Installation ```sh npm install --save-dev babel-plugin-transform-charcodes ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "plugins": ["transform-charcodes"] } ``` ### Via CLI ```sh babel --plugins transform-charcodes script.js ``` ### Via Node API ```javascript require("@babel/core").transform("code", { plugins: ["transform-charcodes"] }); ```
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