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[General] Reliable JavaScript-Developer-I Exam Sims & Exam JavaScript-Developer-I Simu

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【General】 Reliable JavaScript-Developer-I Exam Sims & Exam JavaScript-Developer-I Simu

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q108-Q113):NEW QUESTION # 108
Which two console logs output NaN?
Choose 2 answers | |
  • A. console.log(10 / 0);
  • B. console.log(10 / Number('5) ) ;
  • C. console.loeg(10 / 'five');
  • D. console.log(parseInt ' ("two')) ;
Answer: B,D

NEW QUESTION # 109
A developer wrote a fizzbuzz function that when passed in a number, returns the following:
* 'Fizz' if the number is divisible by 3.
* 'Buzz' if the number is divisible by 5.
* 'Fizzbuzz' if the number is divisible by both 3 and 5.
* Empty string if the number is divisible by neither 3 or 5.
Which two test cases will properly test scenarios for the fizzbuzz function?
Choose 2 answers
  • A. let res = fizzbuzz(15);
    console.assert ( res === ' fizzbuzz ' )
  • B. let res = fizzbuzz(Infinity);
    console.assert ( res === ' ' )
  • C. let res = fizzbuzz(5);
    console.assert ( res === ' ' );
  • D. let res = fizzbuzz(3);
    console.assert ( res === ' buzz ' )
Answer: A,B,D

NEW QUESTION # 110
Universal Containers (UC) notices that its application that allows users to search for
accounts makes a network request each time a key is pressed. This results in too many
requests for the server to handle.
● Address this problem, UC decides to implement a debounce function on string change
handler.
What are three key steps to implement this debounce function?
Choose 3 answers:
  • A. Store the timeId of the setTimeout last enqueued by the search string change handle.
  • B. If there is an existing setTimeout and the search string changes, cancel the existing
    setTimeout using the persisted timerId and replace it with a new setTimeout.
  • C. If there is an existing setTimeout and the search string change, allow the existing
    setTimeout to finish, and do not enqueue a new setTimeout.
  • D. When the search string changes, enqueue the request within a setTimeout.
  • E. Ensure that the network request has the property debounce set to true.
Answer: C,D,E

NEW QUESTION # 111
A developer has a formatName function that takes two arguments, firstName and lastName and returns a string. They want to schedule the
function to run once after five seconds.
What is the correct syntax to schedule this function?
  • A. setTimout(() => { formatName("John', 'Doe') }, 5000);
  • B. setTimeout ('formatName', 5000, 'John", "Doe');
  • C. setTimeout (formatName('John', ''Doe'), 5000);
  • D. setTimeout (formatName(), 5000, "John", "BDoe");
Answer: B

NEW QUESTION # 112
A developer wrote the following code:

The developer has a getNextValue function to execute after handleObjectvalue ( ), but does not want to execute getNextValues ( ) If an error occurs.
How can the developer change the code to ensure this behavior?
A)

B)

C)

  • A. Option C
  • B. Option B
  • C. Option A
  • D. Option D
Answer: D

NEW QUESTION # 113
......
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