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Salesforce Certified JavaScript Developer I Practice Test - Questions Answers, Page 9

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Question 81

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A developer wrote a fizzbuzz function that when passed in a number, returns the following:

• 'Fizz' if the number is divisible by 3.

• 'Buzz' if the number is divisible by 5.

• 'Fizzbuzz' if the number is divisible by both 3 and 5.

• Empty string if the number is divisible by neither 3 or 5.

Which two test cases will properly test scenarios for the fizzbuzz function?

Choose 2 answers

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Question 82

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A developer has code that calculates a restaurant bill, but generates incorrect answers while testing the code:

function calculateBill ( items ) {

let total = 0;

total += findSubTotal(items);

total += addTax(total);

total += addTip(total);

return total;

}

Which option allows the developer to step into each function execution within calculateBill?

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Question 83

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The developer has a function that prints "Hello" to an input name. To test this, thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".

What can the developer do to change the code to print "Hello World" ?

Salesforce Certified JavaScript Developer I image Question 83 63754 09232024002545000000

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Question 84

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A developer has the function, shown below, that is called when a page loads.

function onload() {

console.log("Page has loaded!");

}

Where can the developer see the log statement after loading the page in the browser?

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Question 85

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Refer to the code below:

let sayHello = () => {

console.log ('Hello, world!');

};

Which code executes sayHello once, two minutes from now?

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Question 86

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What is the result of the code block?

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Question 87

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Refer to the following code that imports a module named utils:

import (foo, bar) from '/path/Utils.js';

foo() ;

bar() ;

Which two implementations of Utils.js export foo and bar such that the code above runs without error?

Choose 2 answers

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Question 88

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developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality.

The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.

Given the code and the information the developer has, which code logs an error at boost with an event?

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Question 89

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Refer to the following code:

function test (val) {

If (val === undefined) {

return 'Undefined values!' ;

}i

f (val === null) {

return 'Null value! ';

}

return val;

}

Let x;

test(x);

What is returned by the function call on line 13?

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Question 90

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Which code statement below correctly persists an objects in local Storage ?

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