Explain Popup Message using event with example
Display a simple message “Welcome!!!” on your demo webpage and when the user hovers over the message, a popup should be displayed with a message “Welcome to my WebPage!!!”. Example:…
What are Cookies in JavaScript?
A cookie is a piece of data stored on your computer to be accessed by your browser. You also might have enjoyed the benefits of cookies knowingly or unknowingly. Have…
When to Use Internal and External JavaScript Code?
Suppose you have only a few lines of code that is specific to a particular webpage. In that case, it is better to keep your JavaScript code internal within your…
What is External JavaScript?
You plan to display the current date and time on all your web pages. Suppose you wrote the code and copied it in to all your web pages (say 100).…
getElementsByTagName Example
getElementsByTagName: To access elements and attributes using tag name. This method will return an array of all the items with the same tag name. <html> <head> <title>DOM!!!</title> </head> <body> <h3>Welcome</h3>…
How to use DOM and Events?
Using DOM, JavaScript can perform multiple tasks. It can create new elements and attributes, change the existing elements and attributes and even remove existing elements and attributes. JavaScript can also…
What is DOM in JavaScript?
JavaScript can access all the elements in a web page using the Document Object Model (DOM). The web browser creates a DOM of the webpage when the page is loaded.
How does QuickSort Work
Step 1) First, find the “pivot” element in the array. Step 2) Start the left pointer at the first element of the array. Step 3) Start the right pointer at the last element of the…
What is QuickSort Algorithm in JavaScript?
Quick Sort algorithm follows Divide and Conquer approach. It divides elements into smaller parts based on some conditions and performing the sort of operations on those divided smaller parts. Quick…
What are some important JavaScript Unit Testing Frameworks?
Following is a curated list of popular JavaScript Unit Testing Frameworks and Tools that are widely used : Unit.js: It is known as an open-source assertion library running on browser and…