Salesforce Javascript-Developer-I Quiz 20 Topic 2 Questions 96-100

Question: 1

Which three actions can be done using the JavaSript browser console?

Choose 3 answer

AView and change the DOM of the page.

BDisplay a report showing the performance of a page.

CRun code a that is not related to the page.

DView, change, and debug the JavaScript code of the page.

EView and change security cookies

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Question: 2

In which situation should a developer include a try... catch block around their function call?

AThe function has an error that should not be silenced.

BThe function results in an out of memory issue.

CThe function might raise a runtime error that needs to be handled.

DThe function contains scheduled code.

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Question: 3

A class was written to represent items for purchase in an online store, and a second class representing items that are on sale at a discounted price. The constructor sets the name to the first value passed in. The pseudocode is below:

q3_Javascript-Developer-I

There is a new requirement for a developer to implement a description method that will retrun a brief description for item and saleitem.

q3_Javascript-Developer-I

What is the out when executing the code above?

AThis is a Scarf
Unicaught TypeError: saleitem, description is not a function
This is a Scarf
This is a discounted Shirt

BThis is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt

CThis is a Scarf
This is a Shirt
This is a discounted Scard
This is a discounted Shirt

DThis is a Scaf
Uncaught TypeError: saleItem, description is not a function
This is a Shirt
This is a discounted Shirt

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Question: 4

Given the following code:

Let x = ('15' +10) +2;

What is the value of x?

A3020

B1520

C50

D35

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Question: 5

Refer to the following code:

q5_Javascript-Developer-I

Which two statements could be inserted at line 17 to enable the function call on line 18?

Choose 2 answers

A1eo.roar = () => 9 (console.log('They\'re pretty good1'); 1;

BObject.assign, assign( 1eo, trigger);

CObject,assign(1eo, tony) ;

D1eo.prototype.roar = ( ) => ( console.log (They\'re pretty good1'); );

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Salesforce Javascript-Developer-I Quiz:20 Topic:2 Questions:96-100