Question 1

A device's ____ detects its orientation in space.

Accepted Answer

A) gyroscope 
B) camera 
C) accelerometer 
D) battery 
A) gyroscope 
B) camera 
C) accelerometer 
D) battery A

Question 2

In the Google Maps API, you specify coordinates with the ____ constructor.

Accepted Answer

A)  Coords() 
B) Coordinates() 
C)  New() 
D) LatLng() 
A)  Coords() 
B) Coordinates() 
C)  New() 
D) LatLng() D

Question 3

Explain why you need to be able to distinguish between app and device interaction when interpreting touch events.

Accepted Answer

While users can interact via touch with an app, they also use touch to perform  browser and device interactions, known as gestures , for activities such as scrolling the  page and viewing device notifications. For instance, in addition to executing code in response to a  touchmove  event that you specify, the device's operating system may also interpret the touchmove event as  the user interacting with the interface to scroll the page. As you can imagine,  users would find such unpredictable results frustrating.  
To ensure that the operating system interface does not respond to events generated when  users interact with an app, you can use the preventDefault( method. By adding the  preventDefault( method within event handler code, you prevent touch actions on  specific elements from also triggering interface gestures.

Question 4

Pointer events do not aim to handle input from  a mouse.

Accepted Answer

A) True 
 B)False

Question 5

__________ is the process of making it clear to users what information your app wants to collect from them and how you intend to use it.

Accepted Answer

The answer of __________ is the process of making it...

Question 6

How can you make changes or enhancements to an app that uses a minified file?

Accepted Answer

You make the minified version of your co

Question 7

Large-volume users of the Google Maps API need an API __________, which is a string of characters that you incorporate into any request your code makes to Google to verify that your use is licensed.

Accepted Answer

The answer of Large-volume users of the Google Maps API...

Question 8

To disable interface gestures in response to pointer events, you change the value off the ____ property.

Accepted Answer

A)  touches 
B)  clientX 
C)  touchAction 
D)  msTouchAction 
A)  touches 
B)  clientX 
C)  touchAction 
D)  msTouchAction

Question 9

Which array contains coordinates of all touches currently on the screen?

Accepted Answer

A)  touches 
B)  allTouches 
C)  targetTouches 
D)  changedTouches 
A)  touches 
B)  allTouches 
C)  targetTouches 
D)  changedTouches

Question 10

Which of the following is NOT removed when minifying a file?

Accepted Answer

A)  spaces 
B) comments 
C) indents 
D) line breaks 
A)  spaces 
B) comments 
C) indents 
D) line breaks

Question 11

Which of the following is a touch event?

Accepted Answer

A)  touchend 
B)  mousedown 
C)  pointermove 
D)  clientY 
A)  touchend 
B)  mousedown 
C)  pointermove 
D)  clientY

Question 12

The touchstart event is roughly analogous to the ____ event.

Accepted Answer

A)  click 
B)  mouseup 
C)  mousedown 
D)  mouseover 
A)  click 
B)  mouseup 
C)  mousedown 
D)  mouseover

Question 13

By adding the __________   method within event handler code, you prevent touch actions on  specific elements from also triggering interface gestures.

Accepted Answer

The answer of By adding the __________   method within...

Question 14

Explain what the Device Orientation API does and provide an example of how it could be used.

Accepted Answer

The Device Orientation API  provides acc

Question 15

What is the difference between a synchronous callback and an asynchronous callback?

Accepted Answer

A synchronous callback is a ca

Question 16

In the Google Maps API, the ____ constructor creates a map object.

Accepted Answer

A)  Create() 
B) New() 
C)  Map() 
D) LatLng() 
A)  Create() 
B) New() 
C)  Map() 
D) LatLng()

Question 17

Which type of events aim to handle input from a mouse, finger, or stylus with each event?

Accepted Answer

A) Drag events 
B) Pointer events 
C) Touch events 
D) Mouse events 
A) Drag events 
B) Pointer events 
C) Touch events 
D) Mouse events

Question 18

On a touchscreen device without a mouse, most browsers fire the click event when a  user touches the screen.

Accepted Answer

A) True 
 B)False

Question 19

Explain the difference in how you reference coordinates between mouse events and touch events.

Accepted Answer

Each mouse event includes a  clientX  an

Question 20

Which of the following is a mouse event?

Accepted Answer

A)  touchstart 
B)  click 
C)  pointerup 
D)  clientX 
A)  touchstart 
B)  click 
C)  pointerup 
D)  clientX

A device's ____ detects its orientation in space.

In the Google Maps API, you specify coordinates with the ____ constructor.

Explain why you need to be able to distinguish between app and device interaction when interpreting touch events.

Pointer events do not aim to handle input from a mouse.

__________ is the process of making it clear to users what information your app wants to collect from them and how you intend to use it.

How can you make changes or enhancements to an app that uses a minified file?

Large-volume users of the Google Maps API need an API __________, which is a string of characters that you incorporate into any request your code makes to Google to verify that your use is licensed.

To disable interface gestures in response to pointer events, you change the value off the ____ property.

Which array contains coordinates of all touches currently on the screen?

Which of the following is NOT removed when minifying a file?

Which of the following is a touch event?

The touchstart event is roughly analogous to the ____ event.

By adding the __________ method within event handler code, you prevent touch actions on specific elements from also triggering interface gestures.

Explain what the Device Orientation API does and provide an example of how it could be used.

What is the difference between a synchronous callback and an asynchronous callback?

In the Google Maps API, the ____ constructor creates a map object.

Which type of events aim to handle input from a mouse, finger, or stylus with each event?

On a touchscreen device without a mouse, most browsers fire the click event when a user touches the screen.

Explain the difference in how you reference coordinates between mouse events and touch events.

Which of the following is a mouse event?

Introduction to Javascript

Working With Functions Data Types and Operators

Building Arrays and Controlling Flow

Debugging and Error Handling

Working With the Document Object Model Dom and Dhtml

Enhancing and Validating Forms

Using Object Oriented Javascript

Manipulating Data in Strings and Arrays

Managing State Information and Security

Updating Web Pages With Ajax

Introduction to Jquery

Filters

Exam 10: Programming for Mobile Devices and Touchscreens

A device's ____ detects its orientation in space.

In the Google Maps API, you specify coordinates with the ____ constructor.

Explain why you need to be able to distinguish between app and device interaction when interpreting touch events.

Pointer events do not aim to handle input from a mouse.

__________ is the process of making it clear to users what information your app wants to collect from them and how you intend to use it.

How can you make changes or enhancements to an app that uses a minified file?

Large-volume users of the Google Maps API need an API __________, which is a string of characters that you incorporate into any request your code makes to Google to verify that your use is licensed.

To disable interface gestures in response to pointer events, you change the value off the ____ property.

Which array contains coordinates of all touches currently on the screen?

Which of the following is NOT removed when minifying a file?

Which of the following is a touch event?

The touchstart event is roughly analogous to the ____ event.

By adding the __________ method within event handler code, you prevent touch actions on specific elements from also triggering interface gestures.

Explain what the Device Orientation API does and provide an example of how it could be used.

What is the difference between a synchronous callback and an asynchronous callback?

In the Google Maps API, the ____ constructor creates a map object.

Which type of events aim to handle input from a mouse, finger, or stylus with each event?

On a touchscreen device without a mouse, most browsers fire the click event when a user touches the screen.

Explain the difference in how you reference coordinates between mouse events and touch events.

Which of the following is a mouse event?

Introduction to Javascript

Working With Functions Data Types and Operators

Building Arrays and Controlling Flow

Debugging and Error Handling

Working With the Document Object Model Dom and Dhtml

Enhancing and Validating Forms

Using Object Oriented Javascript

Manipulating Data in Strings and Arrays

Managing State Information and Security

Updating Web Pages With Ajax

Introduction to Jquery

Filters