javascript

Origin http://localhost:3002 is not allowed by Access-Control-Allow-Origin If you have ever worked with web development, you might have encountered this error message - "Origin http://localhost:3002 is not allowed by Access-Control-Allow-Origin". This error occurs when you are making an AJAX request from a domain that

How to check if an array is empty using Javascript? As a web developer, I have come across scenarios where I need to check if an array is empty or not using Javascript. There are multiple ways to achieve this, and I will discuss them below. Method 1: Using the

Javascript Events Javascript events are actions that occur on a web page, triggered by the user or the browser. They can be used to add interactivity to a website, such as changing the color of a button when it is clicked or displaying a message when the mouse hovers over

Converting Google Distance Value to Kilometers If you have ever used the Google Maps Distance Matrix API, you may have noticed that the distance is returned in meters. However, often times we need to convert this value to kilometers for better readability. Here are a few ways you can do

Default Value in Input Date JS Input date is a type of input field in HTML that allows the user to select a date from a calendar. In JavaScript, we can set a default value for this field using the value attribute. This default value will be displayed in the

How to Convert JSON to CSV using npm If you have a JSON file and want to convert it to a CSV file, you can use npm packages to make the process easier. npm, or Node Package Manager, is a tool that allows developers to share and reuse code. Here

Oh No! "Can't Find Variable Localstorage" Error! Have you ever encountered this error message while trying to access the localStorage object in JavaScript? Well, don't worry. You are not alone. This is a very common error message that many developers face when working with

Javascript Switch Items in Array Switching items in an array can be done through several methods in Javascript. Here are some ways to achieve this: Method 1: Using the swap method The easiest way to switch items in an array is by using the swap method. This method swaps the

Clear Input Field Data in jQuery Input fields are commonly used in web development and sometimes it's necessary to clear the data inside them. In jQuery, this can be done easily with a few lines of code. Method 1: Setting the Value to an Empty String The first

Javascript onclick Alert "Are you sure?" If you are a web developer, you must have come across situations where you need to ask the user for confirmation before proceeding with an action. One of the most common ways to do this is by using JavaScript's "