How to upload and preview files on the web? I had a task where I needed to upload an image and display a thumbnail on the screen the other day. While working on file uploads on the web, I started to wonder what exactly a blob format is, why we use FileReader, and what binary data means.
Immutable. It means 'unchangeable'. But why is immutability of data important? While I’ve heard the term “immutable objects” many times, I hadn’t really thought about why they’re significant. In this post, we’ll explore what immutable data is, and why it matters.
When was the very first computer invented? And where did programming even come from? To really understand the roots of computers and programming, we’re traveling all the way back to 2500 BCE, when people first started using tools to calculate.