Salesforce JavaScript-Developer-I Salesforce Certified JavaScript Developer (JS-Dev-101) Dumps - Easy To Prepare Exam [2026]

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q19-Q24):

NEW QUESTION # 19
Refer to the code:

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

A. canTalk
B. Name
C. Size
D. Owner
E. Type

Answer: A,C,E

NEW QUESTION # 20
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

A. The line 05 assertion passes.
B. The line 02 assertion fails
C. The line 05 assertion fails.
D. The line 02 assertion passes.

Answer: C,D

NEW QUESTION # 21
A developer creates an object where its properties should be immutable and prevent properties from being added or modified.
Which method should be used to execute this business requirement?

A. Object. Lock ( )
B. Object. filebase ( )
C. Object. real ( )
D. Object const ( )

Answer: B

NEW QUESTION # 22
Refer to the following code:

What is the output of line 11?

A. ["bar", "foo"]
B. ["foo", "bar"]
C. [1,2]
D. ["foo:1", "bar:2"]

Answer: B

NEW QUESTION # 23
A developer is debugging a web server that uses Node.js. The server hits a runtime error every third request to an important endpoint on the web server.
The developer added a break point to the start script, that is at index, js at the root of the server's source code. The developer wants to make use of Chrome DevTools to debug.
Which command can be run to access DevTools and make sure the breakpoint is hit?

A. Node --inspect -brk index , js
B. Node -- inspect index ,js
C. Node inspect index , js
D. Node -I index , js

Answer: B

NEW QUESTION # 24
......

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