Definition:
An event is an action a user performs on a webpage. For example, when someone opens a website like
www.edutation.com, moves the mouse over a JavaScript topic, or clicks on something, these actions are called events.
When the page reacts to these actions, it is called the event response.
In short, opening a page, moving the mouse over something, or clicking are all examples of events.
Some common event types in JavaScript include:
onclick onmouseover onmouseout onchange onkeypress
Now you will clearly understand with the help of the flowchart.
Start
|
v
User performs an action (click, type, move mouse)
|
v
Browser detects the event
|
v
Is there an event handler?
|
|-- Yes --> Run the assigned JavaScript function
| |
| v
| Page responds to the event
| |
| v
| End
|
|-- No --> Nothing happens
|
v
End