//install in your project directory
npm install --save @fortawesome/fontawesome-free
// in angular.json add in the 'build' section the following lines in 'styles' and 'scripts'
"styles": [
"node_modules/@fortawesome/fontawesome-free/css/all.css"
]
"scripts": [
"node_modules/@fortawesome/fontawesome-free/js/all.js"
]
//from now on, you can use fontawesome icons through the <i>
<i class='fab fa-facebook'></i>