Salesforce Exam Salesforce Certified JavaScript Developer (JS-Dev-101) Topic 2 Question 84 Discussion

Actual exam question for Salesforce's Salesforce Certified JavaScript Developer (JS-Dev-101) exam

Question #: 84
Topic #: 2

[All Salesforce Certified JavaScript Developer (JS-Dev-101) Questions]

Refer to the code below:

const addBy = ?

const addByEight =addBy(8);

const sum = addBYEight(50);

Which two functions can replace line 01 and return 58 to sum?

Choose 2 answers

Aconst addBy = function(num1){
return function(num2){
return num1 + num2;
}

Bconst addBy = function(num1){
return num1 + num2;
}

Cconst addBy = (num1) => num1 + num2 ;

Dconst addBY = (num1) => (num2) => num1 + num2;

Show Suggested Answer

Suggested Answer: A, D

by Marta at Jul 11, 2024, 12:52 AM

Limited Time Offer

25%

Off

Get Premium Salesforce Certified JavaScript Developer (JS-Dev-101) Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Lou

1 years ago

I'm hungry just looking at this code. I wonder if there's a function that can add some snacks to the mix?

upvoted 0 times

...

Emile

1 years ago

Aha, Option D looks like the winner! Currying is the way to go here, nice and concise.

upvoted 0 times

...

Elly

1 years ago

Option C is interesting, but I'm not sure about the use of 'num2' when it's not defined. Hmm, curious.

upvoted 0 times

Aileen

1 years ago

D) const addBY = (num1) => (num2) => num1 + num2;

upvoted 0 times

...

Ronny

1 years ago

A) const addBy = function(num1){\nreturn function(num2){\nreturn num1 + num2;\n}

upvoted 0 times

...

Lettie

1 years ago

Option B is a no-go, it's missing a parameter. How can we add without a second number?

upvoted 0 times

Lenita

1 years ago

Yeah, option B is definitely not the right choice. We need that second parameter to add the numbers together.

upvoted 0 times

...

Carlota

1 years ago

C) const addBy = (num1) => num1 + num2 ;

upvoted 0 times

...

Armando

1 years ago

A) const addBy = function(num1){\nreturn function(num2){\nreturn num1 + num2;\n}

upvoted 0 times

...

Hannah

1 years ago

Option A looks good, but why do we need a nested function? Seems a bit overkill for such a simple task.

upvoted 0 times

Lisha

1 years ago

It's a matter of preference, some developers prefer nested functions for clarity.

upvoted 0 times

...

Jenelle

1 years ago

Nested functions can help with code organization and readability.

upvoted 0 times

...

Irene

1 years ago

Option A is more flexible and allows for currying, which can be useful in certain situations.

upvoted 0 times

...

Sage

1 years ago

I think option A and D are correct because they both return a function that adds two numbers.

upvoted 0 times

...

Cordelia

1 years ago

I'm not sure, but I think option B and C might work too.

upvoted 0 times

...

Chantell

1 years ago

I agree with Annett, option A and D both return the sum of two numbers.

upvoted 0 times

...

Annett

1 years ago

I think option A and D can replace line 01.

upvoted 0 times

...