Free JavaScript-Developer-I – Salesforce Certified JavaScript Developer I Practice Test Question

Answer is in the explanation below.

Select all that apply, then click Submit answer.

• ○

  The line 05 assertion passes.

• ○

  The line 02 assertion passes.

• ○

  The line 02 assertion fails.

• ○

  The line 05 assertion fails.

Select all that apply, then click Submit answer.

• ○

  str.substr(1, 5);

• ○

  str.substr (0, 5);

• ○

  str.substring (1, 5);

• ○

  str.substring (0, 5);

Select all that apply, then click Submit answer.

• ○

  sum(5) (5)

• ○

  sum() (10)

• ○

  sum(5, 5) ()

• ○

  sum(10) ()

• ○

  sum() (5, 5)
  
  

Select all that apply, then click Submit answer.

• ○

  worker

• ○

  isotream

• ○

  exception

• ○

  http

Select all that apply, then click Submit answer.

• ○

  new Promise(() => {throw ‘Cool error here’}).then((null, error => console.error(error)));

• ○

  new Promise((resolve, reject) => {throw ‘Cool error here’}).catch
  (error => console.error(error));

• ○

  Promise.reject(‘Cool error here’).then(error => console.error(error));

• ○

  Promise.reject(‘Cool error here’).catch(error => console.error (error));
  
  

Select all that apply, then click Submit answer.

• ○

  runParallel().then(data);

• ○

  runParallel().done(function(data){ return data;
  });

• ○

  async runParallel().then(data);

• ○

  runParallel().then(function(data){ return data;
  });
  
  

Select all that apply, then click Submit answer.

• ○

  userInformation(“email”)

• ○

  userInformation.get(“email”)

• ○

  userInformation.email

• ○

  userInformation(email)
  

Select an option, then click Submit answer.

• ○

  2 2 1 1

• ○

  2 2 undefined undefined

• ○

  2 2 1 2

• ○

  2 2 2 2

Select an option, then click Submit answer.

• ○

  C.
  D.
  
  

Select an option, then click Submit answer.

• ○

  Named

• ○

  All

• ○

  Multi

• ○

  Default
  

Select an option, then click Submit answer.

• ○

  Object.const()

• ○

  Object.eval()

• ○

  Object.lock()

• ○

  Object.freeze()

Select an option, then click Submit answer.

• ○

  Resolved1 Resolved2 Resolved3 Resolved4

• ○

  Rejected

• ○

  Rejected Resolved

• ○

  Rejected1 Rejected2 Rejected3 Rejected Rejected Rejected4

Select an option, then click Submit answer.

• ○

  "msg is not defined"

• ○

  "newUserName"

• ○

  "User-name available"

• ○

  undefined

Select an option, then click Submit answer.

• ○

  Replace line 04 with console.log(input .value);

• ○

  Replace line 03 with const input = document.getElementByName(‘input’);

• ○

  Replace line 02 with button.addEventListener(“onclick”, function() {

• ○

  Replace line 02 with button.addCallback(“click”, function() {