install bootstrap angular 9

From angular cli:

npm install --save bootstrap
npm install --save jquery

Then add the following paths to angular.json:

"node_modules/bootstrap/dist/css/bootstrap.css" in the projects -> architect -> build -> styles array
"node_modules/jquery/dist/jquery.js" in the projects -> architect -> build -> scripts array
"node_modules/bootstrap/dist/js/bootstrap.js" in the projects -> architect -> build -> scripts array

npm install bootstrap --save

ng add @ng-bootstrap/ng-bootstrap

....      "styles": [        "node_modules/bootstrap/dist/css/bootstrap.min.css",        "src/styles.css"      ],      "scripts": [          "node_modules/jquery/dist/jquery.min.js",          "node_modules/bootstrap/dist/js/bootstrap.min.js"      ].....

@import "~bootstrap/dist/css/bootstrap.css";