# @babel/helper-builder-binary-assignment-operator-visitor > Helper function to build binary assignment operator visitors See our website [@babel/helper-builder-binary-assignment-operator-visitor](https://babeljs.io/docs/en/next/babel-helper-builder-binary-assignment-operator-visitor.html) for more information. ## Install Using npm: ```sh npm install --save-dev @babel/helper-builder-binary-assignment-operator-visitor ``` or using yarn: ```sh yarn add @babel/helper-builder-binary-assignment-operator-visitor --dev ```