Some events, such as clicking on links and submitting forms, take the user to another page or expects data to sent to a server
There are times when you don’t want that default behavior to happen
Javascript gives you the ability to prevent the default behavior using preventDefault()
For more information on preventDefault click here
// All javascript functions get an 'event' object as a parameter by default, most of the time
// you can ignore this, but you will need it if you want to prevent default behavior
// Define a function when
function handleFormSubmision(event){
event.preventDefault();
// the rest of your code goes here
}