# @babel/plugin-proposal-partial-application > Introduces a new ? token in an argument list which allows for partially applying an argument list to a call expression See our website [@babel/plugin-proposal-partial-application](https://babeljs.io/docs/en/next/babel-plugin-proposal-partial-application.html) for more information. ## Install Using npm: ```sh npm install --save-dev @babel/plugin-proposal-partial-application ``` or using yarn: ```sh yarn add @babel/plugin-proposal-partial-application --dev ```