QUIZ HIGH PASS-RATE JAVASCRIPT-DEVELOPER-I - SALESFORCE CERTIFIED JAVASCRIPT DEVELOPER I EXAM TEST SAMPLE QUESTIONS

Quiz High Pass-Rate JavaScript-Developer-I - Salesforce Certified JavaScript Developer I Exam Test Sample Questions

Quiz High Pass-Rate JavaScript-Developer-I - Salesforce Certified JavaScript Developer I Exam Test Sample Questions

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Tags: JavaScript-Developer-I Test Sample Questions, JavaScript-Developer-I Exam Vce Format, Latest JavaScript-Developer-I Test Pass4sure, New JavaScript-Developer-I Dumps Questions, JavaScript-Developer-I Reliable Exam Cost

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q54-Q59):

NEW QUESTION # 54
Referto the following code:

Which two statement could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers

  • A. Object.assign (leo. Tiger);
  • B. leo.prototype.roar = ( ) =>( console.log('They're pretty good!'); };
  • C. leo.roar = () => { console.log('They're pretty good!'); );
  • D. Object.assign (leo, tony);

Answer: C,D


NEW QUESTION # 55
Refer to the code below:

What is the value of result after the code executes?

  • A. NaN
  • B. undefined
  • C. 0
  • D. 1

Answer: C


NEW QUESTION # 56
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. undefined
  • B. "Msg is not defined"
  • C. "Username available"
  • D. "newUserName"

Answer: A


NEW QUESTION # 57
myArraym can have one level, two levels, or more levels.
Which statement flattens myArray when it can be arbitrarily nested?

  • A. [ ] .concat {. . .myArray) ;
  • B. myArray. join (","). split (",");
  • C. myArray. reduce ((prev, curr) => prev.concat(curr) [ ]);
  • D. myArray.flat(Infinity);

Answer: C


NEW QUESTION # 58
Refer to the code below:
const car = {
price:100,
getPrice:function(){
return this.price;
}
};
const customCar = Object.create(car);
customCar.price = 70;
delete customCar.price;const result = customCar.getPrice();
What is the value of result after the code executes?

  • A. 0
  • B. undefined
  • C. 1
  • D. null

Answer: A


NEW QUESTION # 59
......

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