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…
What is JavaScript Unit Testing, and what are the challenges in JavaScript Unit Testing?
JavaScript Unit Testing is a testing method in which JavaScript tests code written for a web page or web application module. It is combined with HTML as an inline event…
What is Loop Though the Properties of an Object?
The for/in a loop is usually used to loop through the properties of an object. You can give any name for the variable, but the object’s name should be the…
What is OOPS Concept in JavaScript?
Many times, variables or arrays are not sufficient to simulate real-life situations. JavaScript allows you to create objects that act like real-life objects. A student or a home can be…
What are the important JavaScript Array Method explain with example?
JavaScript Array Methods The Array object has many properties and methods which help developers to handle arrays easily and efficiently. You can get the value of a property by specifying…