Validating an email using JavaScript is not possible. The only 100% reliable way to validate an email address is by sending an email to the address to see if works. That being said, you can use JavaScript and regular expression patterns (regex) to ‘validate’ most of the emails. Just keep in mind you will never …
In JavaScript, the difference between for…of loop and a for…in loop is that: This guide teaches you what are the for…of and for…in loops in JavaScript. Besides, you will learn what’s the main difference via practical examples. Even though the above answer gives you a good hint about the distinction, there are useful and illustrative …
JavaScript for…of vs for…in Loops (A Complete Guide) Read More »
There are several ways to clone a JavaScript object except for one key. The easiest way is to use Object.assign() method to clone an object and then delete the desired key. For example: This guide shows you 4 different ways to clone a JavaScript object by leaving one (or more) keys out. 1. Using the …
How to Clone JavaScript Object Except for One Key (in 4 Ways) Read More »
When dealing with URLs in your code, you need a mechanism that easily lets you access the different parts of the URLs. This is a complete guide to parsing URLs in JavaScript. You will learn how to access the specific parts of your URLs, such as the hostname, file path, or query parameters. This guide …
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JSON doesn’t support comments by design. This means you cannot use traditional code comments (//, /* .. */, or #) to add information as a comment in your JSON data. The only workaround for adding comments in JSON is by adding a JSON element with a key such as “_comment” and a value that is …
JSON is a popular text-based data format that is used to transmit data in network requests. JSON has an easy-to-read syntax and it’s a lightweight data format. This is what makes JSON such a favorable data format. As a web developer, dealing with JSON is almost impossible to avoid. When dealing with JSON, one of …
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To learn JavaScript or any other programming language, the number one thing you must do is write a lot of code. Learning JavaScript is not possible without loads of repetition and consistent practice. This guide teaches you how to learn JavaScript fast. Of course, you can become a proficient self-taught JavaScript developer at your own …
How to Learn JavaScript Fast — Follow These 7 Steps (in 2023) Read More »
This guide teaches you 7 different ways to convert a string to a number in JavaScript. Here is a quick overview of the methods you’re about to learn: Let’s take a more detailed look at each of these approaches and also consider whether it makes sense to use them or not. 1. The parseInt() Function …
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In JavaScript, one of the fundamental data types is the array. Array is a collection of elements, such as numbers, strings, or other types of objects. It’s a data store that lets you store and access data easily in your JavaScript programs. Because every program deals with data, you need arrays all the time. One …
When dealing with strings in JavaScript, it’s common for you to need to replace specific characters or substrings with other values. This guide shows you three ways to replace all string occurrences in JavaScript. Also, you learn why some approaches can be better than others. Here’s a quick look at the three approaches you are …
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