How-To · CoreUI

How to get element ID in JavaScript

Wednesday, July 17, 2024

When working with JavaScript, accessing and manipulating HTML elements is a common task. One frequently asked question is, “How can I get an element’s ID value with JavaScript?” This guide will explore various methods to retrieve the ID of an HTML element using JavaScript.

What is the Difference Between Null and Undefined in JavaScript

Łukasz Holeczek

Friday, July 12, 2024

#how-to #javascript

In JavaScript, null and undefined are two distinct types representing the absence of a value, but they have different uses and behaviors. This article delves into the differences between null and undefined, their use cases, and how to work with them effectively.

How to Get Unique Values from a JavaScript Array

Łukasz Holeczek

Friday, July 5, 2024

#how-to #javascript

In JavaScript, handling arrays and ensuring their uniqueness is a common task. Here are several methods to achieve unique values from an array, ensuring you remove duplicate values effectively.

How to return multiple values from a JavaScript function

Łukasz Holeczek

Thursday, June 27, 2024

#how-to #javascript

In JavaScript, returning multiple values from a function can be effectively achieved using arrays and objects. This approach allows you to return more than one value from the same javascript function call.

How to Remove the Last Character from a String in JavaScript

Łukasz Holeczek

Sunday, June 23, 2024

#how-to #javascript

javascript remove last character from string

Removing the last character from a string in JavaScript is a common task, whether you’re dealing with user input or formatting strings. JavaScript provides several methods to achieve this, including slice(), substring(), and replace(). This article will cover these methods in detail, ensuring you can effectively remove the last character from a string.

JavaScript printf equivalent

Łukasz Holeczek

Saturday, June 22, 2024

#how-to #javascript

In JavaScript, there’s no built-in printf function, but various methods can achieve the same result for string formatting. Let’s explore how to format strings using template literals and custom functions.

How to Open All Links in New Tab Using JavaScript

Łukasz Holeczek

Thursday, June 20, 2024

#how-to #javascript

how to open all links in new tab javascript

Opening all links in a new tab can enhance user experience, especially when dealing with external links. This comprehensive guide will show you how to open all the links using JavaScript.

How to Remove Underline from Link in CSS

Łukasz Holeczek

Thursday, June 13, 2024

#how-to #css

When styling a web page, details matter, including how links appear. By default, browsers add an underline to hyperlinks, but with CSS, you can customize the appearance of these links. In this article, we’ll explore how to use the text-decoration property to remove the underline from links and ensure a consistent and accessible design across your website.

Understanding and Resolving the “React Must Be in Scope When Using JSX

Łukasz Holeczek

Tuesday, June 11, 2024

#how-to #javascript #react

React developers often encounter the error message “React must be in scope when using JSX.” This common error can be confusing, especially for beginners. In this article, we will explore why this error occurs, how to fix it, and best practices to avoid it in the future.

How to Detect a Click Outside of a React Component

Łukasz Holeczek

Friday, May 31, 2024

#how-to #react #hooks

Detecting clicks outside a React component enhances user interactions by managing behaviors like closing tooltip, modals, or dropdown component when users click outside them. This technique ensures a more polished and user-friendly interface in your React app.