JAVASCRIPT-DEVELOPER-I PRACTICE GUIDE MATERIALS: SALESFORCE CERTIFIED JAVASCRIPT DEVELOPER I EXAM AND JAVASCRIPT-DEVELOPER-I STUDY TORRENT - PREPAWAYPDF

JavaScript-Developer-I Practice Guide Materials: Salesforce Certified JavaScript Developer I Exam and JavaScript-Developer-I Study Torrent - PrepAwayPDF

JavaScript-Developer-I Practice Guide Materials: Salesforce Certified JavaScript Developer I Exam and JavaScript-Developer-I Study Torrent - PrepAwayPDF

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q214-Q219):

NEW QUESTION # 214
Given the code below:
const delay = async delay =>{
return new Promise((resolve,reject)=>{
console.log(1);
setTimeout(resolve,deleay);
});
};
const callDelay = async ()=>{
console.log(2);
const yup = await delay(1000);
console.log(3);
}
console.log(4);
callDelay();
console.log(5);
What is logged to the console?

  • A. 4 2 1 5 3

Answer: A


NEW QUESTION # 215
A developer is wondering whether to use, Promise.then or Promise.catch, especially
when a Promise throws an error?
Which two promises are rejected?
Which 2 are correct?

  • A. Promise.reject('cool error here').catch(error => console.error(error));
  • B. New Promise((resolve, reject) => (throw 'cool error here'}).catch(error =>
    console.error(error)) ;
  • C. New Promise(() => (throw 'cool error here'}).then(null, error => console.error(error)));
  • D. Promise.reject('cool error here').then(error => console.error(error));

Answer: A,B


NEW QUESTION # 216
The developer has a function that prints "Hello" to an input name. To test this, thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".

What can the developer do to change the code to print "Hello World" ?

  • A. Change line 5 to function world ( ) {
  • B. Change line 2 to console.log('Hello' , name() );
  • C. Change line 9 to sayHello(world) ();
  • D. Change line 7 to ) () ;

Answer: B


NEW QUESTION # 217
Teams at Universal Containers (CU) work on multiple JavaScript projects at the same time. UC us 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 packages are not supported, but they can use another package manager like yarm.
  • B. Private packages can be scoped, and scopes can be associated to a private registries.
  • C. Private registries are not supported by spm, but packages can be installed vis URL.
  • D. Private register are not supported by npm, but packages can be installed via git.

Answer: A


NEW QUESTION # 218
Refer to the code below:

Which assertion accurately tests the above code?

  • A. Console, assert ( await functionalUnderTest (true) , 'not ok) )
  • B. Console, assert ( await functionalUnderTest (true) , 'not ok' )
  • C. Console, assert (functionalUnderTest (true) , 'ok')
  • D. Console, assert ( await functionalUnderTest (true) , 'ok

Answer: C


NEW QUESTION # 219
......

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