How to use Bootstrap in an Angular project?

Question

I am starting my first Angular application and my basic setup is done.

How can I add Bootstrap to my application?

If you can provide an example then it would be a great help.

Answer 1

Provided you use the Angular-CLI to generate new projects, there's another way to make bootstrap accessible in Angular 2/4.

1. Via command line interface navigate to the project folder. Then use npm to install bootstrap:
   $ npm install --save bootstrap. The --save option will make bootstrap appear in the dependencies.
2. Edit the .angular-cli.json file, which configures your project. It's inside the project directory. Add a reference to the "styles" array. The reference has to be the relative path to the bootstrap file downloaded with npm. In my case it's: "../node_modules/bootstrap/dist/css/bootstrap.min.css",

My example .angular-cli.json:

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "project": {
    "name": "bootstrap-test"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets",
        "favicon.ico"
      ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "test": "test.ts",
      "tsconfig": "tsconfig.app.json",
      "testTsconfig": "tsconfig.spec.json",
      "prefix": "app",
      "styles": [
        "../node_modules/bootstrap/dist/css/bootstrap.min.css",
        "styles.css"
      ],
      "scripts": [],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ],
  "e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },
  "lint": [
    {
      "project": "src/tsconfig.app.json"
    },
    {
      "project": "src/tsconfig.spec.json"
    },
    {
      "project": "e2e/tsconfig.e2e.json"
    }
  ],
  "test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },
  "defaults": {
    "styleExt": "css",
    "component": {}
  }
}

Now bootstrap should be part of your default settings.