JAVASCRIPT-DEVELOPER-I RELIABLE TEST VOUCHER - VALID JAVASCRIPT-DEVELOPER-I EXAM PASS4SURE

JavaScript-Developer-I Reliable Test Voucher - Valid JavaScript-Developer-I Exam Pass4sure

JavaScript-Developer-I Reliable Test Voucher - Valid JavaScript-Developer-I Exam Pass4sure

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q84-Q89):

NEW QUESTION # 84
Which three statements are true about promises ?
Choose 3 answers

  • A. A fulfilled or rejected promise will not change states .
  • B. A Promise has a .then() method.
  • C. A pending promise can become fulfilled, settled, or rejected.
  • D. A settled promise can become resolved.
  • E. The executor of a new Promise runs automatically.

Answer: A,B,C


NEW QUESTION # 85
Universal Container(UC) just launched a new landing page, but users complain that the
website is slow. A developer found some functions that cause this problem. To verify this, the
developer decides to do everything and log the time each of these three suspicious functions
consumes.
console.time('Performance');
maybeAHeavyFunction();
thisCouldTakeTooLong();
orMaybeThisOne();
console.endTime('Performance');
Which function can the developer use to obtain the time spent by every one of the three
functions?

  • A. console.trace()
  • B. console.timeStamp()
  • C. console.timeLog()
  • D. console.getTime()

Answer: C


NEW QUESTION # 86
Given the JavaSript below:

Which code should replace the placeholder comment on line 05 to hide accounts that do not match the search string?

  • A. 'Visible' ; hidden'
  • B. 'Block' ; 'none'
  • C. none' ; 'block '
  • D. 'hidden'; 'visible'

Answer: B


NEW QUESTION # 87
A test has a dependency on database. query. During the test, the dependency is replaced with an object called database with the method, Calculator query, that returns an array. The developer does not need to verify how many times the method has been called.
Which two test approaches describe the requirement?
Choose 2 answers

  • A. Stubbing
  • B. White box
  • C. Substitution
  • D. Black box

Answer: B,C


NEW QUESTION # 88
Refer to the code snippet:
Function getAvailabilityMessage(item) {
If (getAvailability(item)){
Var msg ="Username available";
}
Return msg;
}
A developer writes this code to return a message to user attempting to register a new
username. If the username is available, variable.
What is the return value of msg hen getAvailabilityMessage ("newUserName" ) is
executed and getAvailability("newUserName") returns false?

  • A. "Username available"
  • B. undefined
  • C. "Msg is not defined"
  • D. "newUserName"

Answer: B


NEW QUESTION # 89
......

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