Service, AngularJS

Question: Which of the following is true about $dirty flag?
A
$dirty flag states that value has been changed.

B
$dirty flag states that form has invalid data.

C
Both of the these.

D
None of the above.

Note: $dirty flag states that value in the form has been changed.
1. Report
Question: Which of the following is true about $invalid flag?
A
$invalid flag states that value has been changed.

B
$invalid flag states that form has invalid data.

C
Both of the these.

D
None of the these.

Note: Not available
1. Report
Question: Which of the following is true about AngularJS service?
A
Services are JavaScript functions.

B
Services are responsible to do specific tasks only

C
Inbuilt services are always prefixed with $ symbol.

D
All of these

Note: Services are JavaScript functions and are responsible to do specific tasks only. Each service is responsible for a specific task for example, $http is used to make ajax call to get the server data. $route is used to define the routing information and so on. Inbuilt services are always prefixed with $ symbol.
1. Report
Question: What are the services in AngularJS?
A
Services are singleton objects which are instantiated only once in app and are used to do the defined task.

B
Services are objects which AngularJS uses internally.

C
Services are not used in AngularJS.

D
Services are server side components of AngularJS.

Note: Not available
1. Report

Question: Which of the following is true about $dirty flag?