Javascript · CoreUI

How to replace all occurrences of a string in JavaScript?

Saturday, August 31, 2024

When working with JavaScript, you often must replace all occurrences of a specific substring within a string. This is a common task in various scenarios, such as formatting user input, modifying text content, or processing data. However, the native replace method in JavaScript only replaces the first occurrence of the pattern by default. This article will guide you through different techniques to replace all occurrences of a string in JavaScript effectively.

How to remove a property from an object in Javascript

Łukasz Holeczek

Wednesday, August 28, 2024

#how-to #javascript

In JavaScript, working with objects is a fundamental part of building applications. Often, you may need to remove properties from an object, whether it’s for cleaning up data or preparing an object for a specific use case. This article explores various techniques for removing properties from a JavaScript object, discussing the advantages and potential pitfalls of each method. We’ll also cover how to remove multiple properties from a single object efficiently.

The Wacky World of JavaScript: Unraveling the Oddities

Łukasz Holeczek

Tuesday, August 20, 2024

#how-to #javascript

JavaScript, the ubiquitous language of the web, is known for its flexibility and, at times, its perplexing behavior. Let’s dive into some of the more peculiar aspects of JavaScript that can leave both novice and experienced developers scratching their heads.

How to loop through a 2D array in JavaScript

Łukasz Holeczek

Saturday, August 3, 2024

#how-to #javascript

javascript how to loop through a 2 dimensional array

In JavaScript, a two-dimensional (2D) array is an array of arrays. It’s often used to store data in a tabular form. Traversing these arrays efficiently is crucial for many software development tasks. This article covers various methods to loop through a 2D array in JavaScript, offering examples to demonstrate each technique.

How to limit items in a .map loop in JavaScript

Łukasz Holeczek

Tuesday, July 30, 2024

#how-to #javascript

When working with arrays in JavaScript, the .map method is a powerful tool for transforming elements. However, there are scenarios where you need to limit the number of items processed by .map. This can be particularly useful when handling large datasets or when you only need a subset of data for performance reasons. Here, we’ll explore different methods to limit items in a .map loop.

How to loop through an array in JavaScript

Łukasz Holeczek

Tuesday, July 23, 2024

#how-to #javascript

When working with arrays in JavaScript, efficiently looping through array elements is a crucial skill. Here, we’ll explore several methods to iterate over arrays, highlighting their syntax and use cases. Each method allows you to loop through an array, access array elements, and manipulate data effectively.

How to get element ID in JavaScript

Łukasz Holeczek

Wednesday, July 17, 2024

#how-to #javascript

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.