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Salesforce Certified JavaScript Developer I (SU24)

Last Update Dec 24, 2024
Total Questions : 215 With Comprehensive Analysis

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Salesforce Certified JavaScript Developer I (SU24) Questions and Answers

Questions 1

Refer to the code:

Given the code above, which three properties are set for pet1? Choose 3 answers

Options:

A.

name

B.

owner

C.

type

D.

canTalk

E.

size

Questions 2

A Developer wrote the following code to test a sum3 function that takes in an array of

numbers and returns the sum of the first three number in the array, The test passes:

Let res = sum2([1, 2, 3 ]) ;

console.assert(res === 6 );

Res = sum3([ 1, 2, 3, 4]);

console.assert(res=== 6);

A different developer made changes to the behavior of sum3 to instead sum all of the numbers

present in the array. The test passes:

Which two results occur when running the test on the updated sum3 function ?

Choose 2 answers

Options:

A.

The line 02 assertion passes.

B.

The line 02 assertion fails

C.

The line 05 assertion passes.

D.

The line 05 assertion fails.

Questions 3

A developer is required to write a function that calculates the sum of elements in an

array but is getting undefined every time the code is executed. The developer needs to find

what is missing in the code below.

Const sumFunction = arr => {

Return arr.reduce((result, current) => {

//

Result += current;

//

), 10);

);

Which option makes the code work as expected?

Options:

A.

Replace line 02 with return arr.map(( result, current) => (

B.

Replace line 04 with result = result +current;

C.

Replace line 03 with if(arr.length == 0 ) ( return 0; )

D.

Replace line 05 with return result;

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