Salesforce Javascript-Developer-I Quiz 9 Topic 1 Questions 41-45

Question: 1

Universal Container (UC) notices that its application allows users to search for account makes a network request each time a key is pressed. This results in too many request for the server to handle.

O address this problem, UC decides to implement a deboune function on the search string change handler. Choose 3 answers

AStore the timeId of the setTimeout last enqueued by the search string change handler.

BIf there is an existing settimeout and the search string changes, allow the existing setTimeout to finish, and do not enqueue a settimeout.

CWhen the search string changes, enqueue the request within a setTimeout.

DIf the there is an existing setTimeout and the search string changes, cancel the existing setTimeout using the persisted timeout replace it with a new setTimeout.

EEnsure that the network request has the property debounce set to true,

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Question: 2

Given the code below:

q2_Javascript-Developer-I

Which method can be provide a visual representation of the list if users and to allow sorting by the name or email attributes.

AConsole,table (userslist);

BConsole.groupCollapsed (userslist);

CConsole.info (userlist);

DConsole.group (userList);

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Question: 3

A developer implements and calls the following code when an application state change occurs:

q3_Javascript-Developer-I

If the back button is clicked after this method is executed, what can a developer expect?

AA navigate event is fired with a state properly that details previous application state.

BThe page is navigated away from and previous page in the browser's history is loaded.

CThe page reloads and all JavaScript is reinitialized.

DA popstate event is fired with a state properly that details the application's last state.

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Question: 4

Refer to the expression below:

Let x = ('1' + 2) == (6 + 2) ;

How should this expression be modified to ensure that a evaluated to false?

ALet x = (1' + '2') == (6 + 2) ;

BLet x = (1' + '2') === (6 + 2) ;

CLet x = (1' + '2') == ('6' / 2) ;

DLet x = (1' + '2') === (6 / 2) ;

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Question: 5

Which JavaScript method can be used to serialize an object into a string and deserialize a JSON string into an object, respectively?

AJSON,serialize and JSON,desrialize

BJSON.encode and JSON decode

CJSON.parse and JSON deserialize

DJSON.Stringify and JSON.parse

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Salesforce Javascript-Developer-I Quiz:9 Topic:1 Questions:41-45