Which “href” Value Should You Use for JavaScript Links: # or javascript:void(0)?

When you’re creating a link whose sole purpose is to run JavaScript code, you may wonder which href value is best to use. Should you use # or javascript:void(0)? While both options will technically work, there are important differences in functionality, page behavior, and best practices.

Let’s explore each option:

1. Using href="#"

<a href="#" onclick="myJsFunc();">Run JavaScript Code</a>

Here, the href="#" sets up a clickable link that triggers the JavaScript function myJsFunc() when clicked. However, there are some drawbacks:

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How do I make an HTTP request in Javascript?

 In JavaScript, you can make an HTTP request using the built-in XMLHttpRequest object or the newer fetch() API. Here's how to use each one:

Using XMLHttpRequest:

var xhttp = new XMLHttpRequest();

xhttp.onreadystatechange = function() {

  if (this.readyState == 4 && this.status == 200) {

    console.log(this.responseText);

  }

};

xhttp.open("GET", "http://example.com/api/data", true);

xhttp.send();

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Top 10 GitHub Repositories Every Web Developer Should Bookmark

As web developers, we all know that staying up-to-date with the latest trends, techniques, and technologies is crucial for success in our field. And what better way to do so than by leveraging the power of GitHub? In this article, we'll be exploring the top 10 GitHub repositories every web developer should bookmark for a successful career. These resources cover a range of topics, including front-end development, back-end development, JavaScript, CSS, and more. So, without further ado, let's dive right in!

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How to Safely Encode URLs in JavaScript: A Guide to encodeURIComponent and Related Methods

 When working with URLs in JavaScript, encoding is essential to ensure that data is transmitted safely and interpreted correctly by web servers. This post will guide you through the key methods for encoding URLs, their use cases, and best practices.

Why Encode URLs?

Encoding ensures that special characters in a URL—such as &, ?, or =—are not misinterpreted as part of the URL’s syntax. For example, when adding query parameters to a URL, failing to encode them may lead to unexpected behavior or errors.

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Understanding JavaScript Closures: A Simple Guide

JavaScript closures are often a topic that confuses new and even some experienced developers. Yet, understanding closures is crucial because they are widely used in JavaScript for everything from event handlers to callbacks and beyond. In this blog post, we will demystify closures using simple examples and explain why they are so powerful in JavaScript development.

What is a Closure?

In JavaScript, a closure is a function that remembers the environment in which it was created. This environment consists of any local variables that were in-scope at the time the closure was created.

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How to Get the Length of a JavaScript Object

 When working with JavaScript objects, there may be times when you want to determine how many properties an object contains. Unlike arrays, objects don’t have a built-in length property, so getting the count of an object’s properties requires a bit more work. Here are several methods to determine the length of a JavaScript object, including modern solutions and alternatives for older environments.

1. Using Object.keys()

The Object.keys() method is the most straightforward and widely-used approach. It returns an array of an object’s enumerable property names, making it easy to determine the length by checking the array’s length property.

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Checking for Empty, Undefined, or Null Strings in JavaScript

When working with JavaScript, you’ll frequently need to verify if a string is empty, undefined, or null. This is especially common in web applications where user input must be validated. In this post, we’ll explore multiple ways to check for empty or undefined strings, using various methods, each with its own pros and cons.

Basic Falsy Check

In JavaScript, the concept of truthy and falsy values plays a significant role. A falsy value is a value that translates to false when evaluated in a Boolean context. The most common falsy values are:

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Object Destructuring in JavaScript

 

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