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Webcam or microphone receiving sensory input
Incoming network traffic
Typing on keyboard
Timer
In mobile apps, the events that happen are the results of the user doing something (on
a click of button the orientation of the phone screen changes)
What are Event Handlers?
Event handler is a block of code which get executed when the event occurs and it is
associated with the event.
Examples of Event Handlers:
In MakeCode Arcade, you display message by using ‘splash’ block . ‘splash’ block will get
execute when you click on ‘start the simulator’ button. In this ‘start the simulator’ button
is an event handler.
When you click "send" for a text message, it sends the message and makes a sound.
When you purchase an app from an app store, the phone asks for a password.
When you click an icon for an app, the app opens.
Coding uiz 02 Critical Thinking
Critical Thinking
Give one word answer to the following questions.
a. Name an action on which the program responds. .......................
b. When does the event handler gets executed? .......................
At a Glance
Function is a block of code which is made up of a set of steps that results in a single specific
action.
Function parameters are the names listed in the function definition and Function arguments
are the real values passed to (and received by) the function.
Sorting is the process of arranging data into meaningful order so that you can analyze it
more effectively.
An event is something that happens.
An event handler gets executed, when that event occurs.
Fun with Functions 53

