Javascript-Developer-I Practice Online

Question 1

Refer to the expression below:

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

How should this expression be modified to ensure that evaluates to false?

A : Let x = ('1' + ' 2') == ( 6 * 2);

B : Let x = ('1' + 2) == ( 6 * 2);

C : Let x = (1 + 2) == ( '6' / 2);

D : Let x = (1 + 2 ) == ( 6 / 2);

Answer: B

Question 2

A developer is leading the creation of a new browser application that will serve a single

page application. The team wants to use a new web framework Minimalsit.js. The Lead

developer wants to advocate for a more seasoned web framework that already has a

community around it.

Which two frameworks should the lead developer advocate for?

Choose 2 answers

A : Vue

B : Angular

C : Koa

D : Express

Answer: B,D

Question 3

Which three actions can be using the JavaScript browser console?

Choose 3 answers:

A : View and change DOM the page.

B : Display a report showing the performance of a page.

C : Run code that is not related to page.

D : view , change, and debug the JavaScript code of the page.

E : View and change security cookies.

Answer: A,C,D

Question 4

What is the result of the code block?

A : The console logs only 'flag'.

B : The console logs 'flag' and another flag.

C : An error is thrown.

D : The console logs 'flag' and then an error is thrown.

Answer: D

Question 5

Considering type coercion, what does the following expression evaluate to?

True + '13' + NaN

A : ' 113Nan '

B : 14

C : ' true13 '

D : ' true13NaN '

Answer: D

Name:	Salesforce Certified JavaScript Developer I (WI24)
Exam Code:	Javascript-Developer-I
Certification:	Javascript Developer
Vendor:	Salesforce
Total Questions:	217
Last Updated:	May 14, 2024

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