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[General] Salesforce JS-Dev-101 Questions - Perfect Exam Preparation [2026]

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【General】 Salesforce JS-Dev-101 Questions - Perfect Exam Preparation [2026]

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The JS-Dev-101 certification is the way to go in the modern Salesforce era. Success in the Salesforce Certified JavaScript Developer - Multiple Choice exam of this certification plays an essential role in an individual's future growth. Nowadays, almost every tech aspirant is taking the test to get JS-Dev-101 certification and find well-paying jobs or promotions. But the main issue that most of the candidates face is not finding updated Salesforce JS-Dev-101 Practice Questions to prepare successfully for the Salesforce JS-Dev-101 certification exam in a short time.
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Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q48-Q53):NEW QUESTION # 48
Refer to the code below:
Const resolveAfterMilliseconds = (ms) => Promise.resolve (
setTimeout ((=> console.log(ms), ms ));
Const aPromise = await resolveAfterMilliseconds(500);
Const bPromise = await resolveAfterMilliseconds(500);
Await aPromise, wait bPromise;
What is the result of running line 05?
  • A. aPromise and bPromise run sequentially.
  • B. Neither aPromise or bPromise runs.
  • C. Only aPromise runs.
  • D. aPromise and bPromise run in parallel.
Answer: B

NEW QUESTION # 49
Teams at Universal Containers (UC) work on multiple JavaScript projects at the same time.
UC is thinking about reusability and how each team can benefit from the work of others.
Going open-source or public is not an option at this time.
Which option is available to UC with npm?
  • A. Private registries are not supported by npm, but packages can be installed via git.
  • B. Private packages are not supported, but they can use another package manager likeyarn.
  • C. Private packages can be scored, andscopes can be associated to a privateregistries.
  • D. Private registries are not supported by npm, but packages can be installed via URL.
Answer: C

NEW QUESTION # 50
Given the following code:
let x = null;
console.log(typeof x);
What is the output?
  • A. "x"
  • B. "object"
  • C. "undefined"
  • D. "null"
Answer: B

NEW QUESTION # 51
Refer to the code below:
Const myFunction = arr => {
Return arr.reduce((result, current) =>{
Return result = current;
}, 10};
}
What is the output of this function when called with an empty array ?
  • A. Returns 0
  • B. Returns 10
  • C. Throws an error
  • D. Returns NaN
Answer: B

NEW QUESTION # 52
Refer to the following object.

How can a developer access the fullName property for dog?
  • A. Dog, function, fullName
  • B. Dog, get,fullName
  • C. Dog.fullName
  • D. Dog.fullName ( )
Answer: C

NEW QUESTION # 53
......
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