how to install cypress test runner code example

Example 1: update cypress

npm install --save-dev cypress@4.11.0    //replace the version that you want

//yarn
yarn upgrade cypress@4.11.0

Example 2: install cypress

npm install cypress or npm install cypress --save-dev // Make sure that you have already run npm init

./node_modules/.bin/cypress open  //to open cypress window, will take 30 secs