1# From project directory:
2npm install --save bootstrap
3npm install --save jquery
4
5# Now edit `angular.json`
6# Position: `projects -> architect -> build -> options`
7# To `styles`, add "node_modules/bootstrap/dist/css/bootstrap.css"
8# To `scripts`,
9#   add "node_modules/jquery/dist/jquery.js"
10#   and also "node_modules/bootstrap/dist/js/bootstrap.js"
11# Test with
12# <<div class="alert alert-primary" role="alert"> Bootstrap alert</div>

1From angular cli:
2
3npm install --save bootstrap
4npm install --save jquery
5
6Then add the following paths to angular.json:
7
8"node_modules/bootstrap/dist/css/bootstrap.css" in the projects -> architect -> build -> styles array
9"node_modules/jquery/dist/jquery.js" in the projects -> architect -> build -> scripts array
10"node_modules/bootstrap/dist/js/bootstrap.js" in the projects -> architect -> build -> scripts array
11

1@import "~bootstrap/dist/css/bootstrap.css"
2
3 "styles": [
4              "./node_modules/bootstrap/dist/css/bootstrap.css",
5              "src/styles.css"              
6            ],

1npm install bootstrap --save

1npm install --save bootstrap

1npm install --save bootstrap
2npm install --save jquery
3
4
5Add this to angular.json
6
7"styles": [
8              "node_modules/bootstrap/dist/css/bootstrap.css",
9              "src/styles.css"
10            ],
11            
12            "scripts": [
13              "node_modules/bootstrap/dist/js/bootstrap.js",
14              "node_modules/jquery/dist/jquery.js"
15            ]