Programming With Swift

How to validate a URL with Node JS?

Recently I needed to validate http links with Node. I thought this should be easy, and it is. Luckily for us, Node has a built in URL module that can help us to this. This is the snippet(not the final one): const URL = require('url').URL // 1 17 May 2022 2 min read BookReview Featured

How to pretty-print JSON with JavaScript?

In this tutorial I will show you how you can pretty print a JSON string. It is a one liner, but it makes all the difference. Normally when we use JSON.stringify, we only want to serialise a JSON object, but sometimes after we serialise it, we might want to 29 Aug 2021 1 min read Node

How to find duplicates in an Array with JavaScript?

In this tutorial I will show you how you can check if an Array contains duplicate elements, but also, we will look at how you can return the elements that are duplicates. Both techniques focussed around the Set data type. Let's start with the data that will use 23 Aug 2021 2 min read How to

How to get the index from for-of loop with JavaScript?

In this tutorial I will show you two ways that you can get the index when using a for-of loop. Let's start with the data that I will be using: const shoppingList = [ 'bread', 'milk', 'pie', 'juice' ] Option 1: .keys( 23 Aug 2021 1 min read JavaScript

How to run Async Await in Parallel or serial with JavaScript(Node)?

In this tutorial I will show you how you can easily run async/await in parallel. It seems to me that we often forget the power of async await, which comes from being able to run multiple async tasks/jobs/functions at the same time. In order for us to 22 Mar 2021 2 min read SwiftUI