tanviriqbal / dom-manupulation

Dom Manupulation

What is DOM

• DOM - Document Object Model
• Structured representation of an HTML Document
• The DOM is used to connect webpages to script like JavaScript
• For each HTML element, there is Object in the DOM that we can access and interact with.

Event and Event Listener

• Events: Notification that are sent to notify the code that something happened on the webpage.
• Example: clicking a button, resizing a window, scrolling down or pressing a key
• Event Listener: A function that performs an action based on a certain event. It waits for a specific event to happen.

Callback Function

• A function that is called by another function. We pass callback function as a parameter to the caller function without ()

Anonymous function

• A function that doesn't have a name, we cannot reuse the anonymous function.