在rails 6安裝font-awesome

參考至 此篇教學，額外透過此篇文章紀錄安裝方法。

1.首先透過 yarn 安裝

yarn add @fortawesome/fontawesome-free

2.再匯入 application.scss（也可以另外建立font-awesome.scss再額外import）

#application.scss
$fa-font-path: '@fortawesome/fontawesome-free/webfonts';
@import '@fortawesome/fontawesome-free/scss/fontawesome';
@import '@fortawesome/fontawesome-free/scss/solid';
@import '@fortawesome/fontawesome-free/scss/regular';
@import '@fortawesome/fontawesome-free/scss/brands';
@import '@fortawesome/fontawesome-free/scss/v4-shims';

3.再修改 application.js

import "@fortawesome/fontawesome-free/js/all";

4.搞定

<i class="fab fa-bootstrap"></i>