Category: JavaScript

Invoking JavaScript code in an iframe from the parent page If you have ever worked with iframes in JavaScript, you may have come across the need to invoke JavaScript code within the iframe from the parent page. This can be a bit tricky, but fear not! In this article, we will explore two solutions to…

When working with JavaScript, it is common to come across situations where you need to check if an array is empty or does not exist. In this blog post, we will explore different solutions to tackle this problem. Solution 1: Using the length property One way to check if an array is empty is by…

When it comes to handling user input in JavaScript, the <code>.keyup()</code> event is commonly used to detect when a user releases a key on their keyboard. However, in some cases, you may want to delay the execution of the event handler until the user stops typing, rather than triggering it for every key press. In…

Object Comparison in JavaScript When working with JavaScript, you may often come across the need to compare objects. However, comparing objects in JavaScript can be a bit tricky as it is not as straightforward as comparing primitive data types like strings or numbers. In this blog post, we will explore different ways to compare objects…

Scroll to bottom of div? As a JavaScript developer, you may have encountered situations where you need to scroll to the bottom of a div element dynamically. Whether it’s a chat application, a social media feed, or a long list of items, scrolling to the bottom can provide a better user experience. In this blog…

When working with Firebase, one of the common concerns is whether it is safe to expose the apiKey to the public. In this article, we will explore the potential risks and discuss some best practices to keep your Firebase apiKey secure. The Risks of Exposing Firebase apiKey Exposing your Firebase apiKey can lead to several…

React is a popular JavaScript library used for building user interfaces. One common task in React is showing or hiding elements based on certain conditions. In this blog post, we will explore different ways to show or hide elements in React. Using Conditional Rendering Conditional rendering is a powerful feature in React that allows you…

Repeat a string in JavaScript a number of times As a JavaScript developer, you may come across situations where you need to repeat a string a certain number of times. Fortunately, JavaScript provides multiple solutions to achieve this. In this article, we will explore three different approaches to repeat a string in JavaScript. 1. Using…

When working with JavaScript, you may come across an error message from JSLint stating: “Use the function form of ‘use strict’”. This error occurs when the “use strict” directive is not placed within a function scope. The “use strict” directive is used to enable strict mode in JavaScript, which helps catch common coding mistakes and…

Most Efficient Method to Group By on an Array of Objects When working with JavaScript, you may often come across the need to group elements in an array of objects based on a specific property or key. This process, commonly known as “grouping by,” allows you to organize and manipulate your data more efficiently. In…