A shell script to automate the process of downloading National Geographic Photo of the Day. The script saves the image of Photo of the Day in the same directory where the script itself resides. You can use cron to make it automatically running everyday.

While learning Node.js, install packages is a commonly operation. However, as a newbie, I might install the packages not in the right way. So taking this note to refresh my mind on npm installs.

For a static site like those on GitHub Pages, everything is done in the frontend. The user just downloads a bunch of static files that execute in their browser. But for a "Contact" form, to deal with the submissions we typically need a backend service, either self hosted or a third a third-party service.

本来只是想简单看看 cookie、localStorage 和 sessionStorage 的，没想到一搜索扩展了很多知识，但是，中心主题还是集中在 web storage (localStorage, sessionStorage) 的认识上，以及怎么使用它们。不过，在此之前，先来简单认识一下 cookie 吧。

虽然 ES8 已经发布，但是以我的基础来说还是从 ES6 (ECMAScript 2015) 开始，此番就跟着 JavaScript by Example 这本书来学习，随手记点笔记，以期长点记性。