In this article, we will look at sorting an array alphabetically in JavaScript. We will cover both arrays with strings and arrays with objects. Sorting an Array with Strings When sorting an array, we can use the sort method. This is pretty simple. We only need to use the sort method without any parameters. Beware…
How to Create a Date We create a new date by newing up a Date object. There are four ways to initialize a Date object: #1 Empty constructor This will give you the current date in GMT. #2 With string as an argument #3 milliseconds as an argument The argument here is the number of…
In this article, I will show you how to get started with ESLint in Visual Studio Code. Linting tools automatically analyze your code for errors and formatting issues. This is great for keeping your code nice and tidy while also warning you for potential errors. If you are working in teams, this is a great…
So you have an array with a bunch of values you want to sum up. To do that, we will use the reduce method. The reduce() method reduces an array and returns a single value. The reduce() method will iterate through every element in the array. We use two parameters. The first is a function…
There are different ways to round a number in JavaScript: Math.round – This follows the standard rounding rules. If the number is X.5 or higher, it will round up to the closest whole number. Else it will round down. Math.floor – This will always round down to the closest whole number. Math.ceil – This will…
This article will show you how to check if a checkbox is checked in regular JavaScript. When I was googling this topic, I saw that most of the results showed how to use JQuery to verify checkboxes. After some research, I discovered that it was very easy to do this in Vanilla JavaScript. I’m not…
Sometimes we are looping through arrays to do some work. Often we don’t need to loop all the way through. Then we need to stop looping or break out of the loop. In this article, I will show you different kinds of JavaScript loops and examples of how you can break the loop. How to…
In this article, I will show you 6 different ways of adding elements to an array in JavaScript. I will also include ES6 methods. Here are the different JavaScript functions you can use to add elements to an array: #1 push – Add an element to the end of the array #2 unshift – Insert…
In this post, we will fetch a random integer between two numbers we define. I.E. let’s say we want a random number between 1 and 100. We will use methods from the MATH object to achieve this. More specifically the Random and Floor methods. Let’s first see what the random method does: We don’t want…
Mutability and Immutability are core principles in various programming paradigms. JavaScript being one of the most used languages on the Internet, mastering what is mutable and immutable types in JavaScript is a plus to acing this common interview question in programming. In this article, we’ll answer this question with examples to make the concept clear….
