Before you delve into frameworks, languages and technologies used by backend developers, there are certain things you should be comfortable with.

First and foremost, understand what a server is and what the different kinds of servers are. Thanks to movies and popular culture, people are intimidated by the idea of a server. But it isn’t that complex at all. You’ll know once you start learning.

Second, learn about what a database is and the different kinds of databases out…

ES6 introduced many new methods built into the Array prototype. These methods allow you to interact with the data in your arrays in different ways, like transforming each item (map), sorting an array, or filtering an array. My favorite array methods that I use commonly in Vue apps are filter, map, forEach, and includes. Here’s an example using filter:

computed: {

// Without "filter" functional array method

oldFilteredItems() {

const filtered = []

for (const item in…

Push main() onto the call stack.

Push console.log() onto the call stack. This then runs right away and gets popped.

Push setTimeout(2000) onto the stack. setTimeout(2000) is a Node API. When we call it, we register the event-callback pair. The event will wait 2000 milliseconds, then callback is the function.

After registering it in the APIs, setTimeout(2000) gets popped from the call stack.

Now the second setTimeout(0) gets registered in the same way. We now have two Node…