Node,yarn installation and version switching under Mac

• Node installation

HTTPS://nodejs.org/en/download/  to the official website to download the specified version

• Installing node's management tools

sudo npm install-g  n  // install nsudo n 8.9.x            // Specify node version, replace old version n Stable                // upgrade node to the latest stable version

• Installing yarn

sudo npm i-g yarnyarn or yarn         install// installation of all dependent packages yarn add [package]@[version]  //  Add a dependency package yarn Remove Packages   // Remove a dependent project

Node,yarn installation and version switching under Mac