Valid Salesforce Developer JavaScript-Developer-I Dumps Ensure Your Passing

JavaScript-Developer-I Dumps Real Exam Questions Test Engine Dumps Training

How to Study the Salesforce JavaScript-Developer-I Exam

The best study material one can get is the JavaScript-Developer-I practice dumps. To ensure good grades, do attempt the JavaScript-Developer-I practice tests. The JavaScript Developer I from Salesforce typically has 1-2 years of experience as a JavaScript developer with the following JavaScript topics.

• Forms of data and operators

• Conversion type (inclusive versus explicit)

• Control of Mistake

• Objects & Arrays: Data Structures

• Modules

• Scope of Variables

• Strings

• Monitor (agnostic platform)

• Discharge

• Item Model Document

• Classes

• Functions (more functions in higher order)

• Asynchronous Programming

• JavaScript on the backend

• Activities

To prepare for this test, we advise a combination of practical experience, completion of training courses, pathways and self-study in the areas listed in the examination outline section of this examination guide.

NEW QUESTION 54
Which three browser specific APIs are available for developer to persist data between page loads?
Choose 3 answers

• A. localStorage
• B. indexedDB
• C. global variables
• D. cookies
• E. IIFEs

Answer: A,B,E

 

NEW QUESTION 55
A developer implements a function that adds a few values.

Which three options can the developer invoke for this function to get a return vale of 10? Choose 3 answers

• A. Sum (10) ()
• B. Sum () (10)
• C. Sum (5, 5) ()
• D. Sum (5) (5)
• E. Sum () (5, 5)

Answer: B,D,E

 

NEW QUESTION 56
Refer to the code below:

Line 05 causes an error.
What are the values of greeting and salutation once code completes?

• A. Greeting is Goodbye and salutation is I say Hello.
• B. Greeting is Hello and salutation is Hello, Hello.
• C. Greeting is Goodbye and salutation is Hello, Hello.
• D. Greeting is Hello and salutation is I say hello.

Answer: B

 

NEW QUESTION 57
Which code statement below correctly persists an objects in local Storage ?

• A. const setLocalStorage = (storageKey, jsObject) => {
  window.localStorage.persist(storageKey, jsObject);
  }
• B. const setLocalStorage = (storageKey, jsObject) => {
  window.localStorage.setItem(storageKey, JSON.stringify(jsObject));
  }
• C. const setLocalStorage = ( jsObject) => {
  window.localStorage.setItem(jsObject);
  }
• D. const setLocalStorage = ( jsObject) => {
  window.localStorage.connectObject(jsObject));
  }

Answer: B

Explanation:

 

NEW QUESTION 58
Refer to the following code:

Which statement should be added to line 09 for the code to display. The truck 123AB has a weight of 5000 Ib. '?

• A. Vehicle.plate = plate
• B. This .plate = plate;
• C. Super = (plate ) ;
• D. Super.plate = plate;

Answer: A,B,C

 

NEW QUESTION 59
A developer publishes a new version of a package with new feature that do not break backward compatibility. The previous version number was 1.1.3.
Following semantic versioning format, what should the new package version number be?

• A. 1.1.4
• B. 1.2.0
• C. 1.2.3
• D. 2.0.0

Answer: B

 

NEW QUESTION 60
A developer is wondering whether to use, promise, then or provise, catch especially when a promise throws an error.
Which two promises are rejected? Choose 2 answers

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

Answer: B,D

 

NEW QUESTION 61
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 fizzbuss function?

• A. Let res = fizzbuss (3) ;
  Console.assert (res === 'buzz' ) ;
• B. Let res = fizzbuss (Infinity);
  Console.assert (res === '' ) ;
• C. Let res = fizzbuss (5) ;
  Console. assert (res === '' ) ;
• D. Let res = fizzbuss (15) ;
  Console. assert (res === 'fizzbuzz' ) ;

Answer: B,D

 

NEW QUESTION 62
Given the following code:

What is the logged by the first four log statements?

• A. 0 1 1 2
• B. 0 0 1 2
• C. 0 1 2 2
• D. 0 1 2 3

Answer: A

 

NEW QUESTION 63
Which code statement below correctly persists an object in localStorage?

• A. const setLocalstorage = (storageKey , jsobject) => (
  windows. LocalStorage,setitem(storagekey. jSON,string
  )
• B. Const setlocalstorage = (storagekey, jsObject) => (
  Window. Localstorage.persist (storagekey, jsObject);
  )
• C. Const setLocalstorage = (jsobject ) => (
  Window .localstorage .setitem (jsobject) ;
• D. const setLocalstorage = (jsobject) =>
  Windows.localstorage.connectobject(jsObject);

Answer: D

 

NEW QUESTION 64
Refer to the code below:
new Promise((resolve, reject) => {
const fraction = Math.random();
if( fraction >0.5) reject("fraction > 0.5, " + fraction);
resolve(fraction);
})
.then(() =>console.log("resolved"))
.catch((error) => console.error(error))
.finally(() => console.log(" when am I called?"));

When does Promise.finally on line 08 get called?

• A. WHen resolved
• B. When rejected
• C. When resolved or rejected
• D. When resolved and settled

Answer: C

 

NEW QUESTION 65
A developer receives a comment from the Tech lead that the code below gives an error.

Which line edit should be made to make this code run?

• A. 03 if (year == 2019) (
• B. 02 let year = 2019 ;
• C. 01 let monthname = 'July ';
• D. 02 const year = 2020;

Answer: D

 

NEW QUESTION 66
Refer to the code below:

What is the value of result when the code executes?

• A. 5 - 5
• B. 10 - 5
• C. 5 - 10
• D. 10 - 10

Answer: D

 

NEW QUESTION 67
A developer uses a parsed JSON string to work with user information as in the block below:

Which two option access the email attributes in the object? Choose 2 answers

• A. userInformation(email)
• B. userInformation. email
• C. userInformation. Get (''email'')
• D. userInformation ( ''email'' )

Answer: B,D

 

NEW QUESTION 68
Refer to the code below:

What value can a developer expect when referencing o,js,secondCity?

• A. Undefined
• B. 'new york'
• C. 'New York
• D. An error

Answer: B

 

NEW QUESTION 69
A developer wants to use a module named universalContainersLib and then call functions from it.
How should a developer import every function from the module and then call the functions foo and bar?

• A. import * as lib from '/path/universalContainersLib.js';
  lib.foo();
  lib. bar ();
• B. import * from '/path/universalContainersLib.js';
  universalContainersLib. foo ()7
  universalContainersLib.bar ();
• C. import all from '/path/universalContainersLib.js';
  universalContainersLib.foo();
  universalContainersLib.bar ();
• D. import {foo,bar} from '/path/universalCcontainersLib.js';
  foo():
  bar()?

Answer: A

 

NEW QUESTION 70
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?
A)

B)

C)

D)

• A. Option D
• B. Option B
• C. Option A
• D. Option C

Answer: C

 

NEW QUESTION 71
Refer to the code below:

What is the value of foobDienu1 after the code executes?

• A. {'Garlic bread', Pizza' , Burger' , French fries'}
• B. {'Pizza' , Burger' , French fries '}
• C. {'Garlic bread'}
• D. {'Pizza' , Burger' , French fries ' , garlic bread; }

Answer: D

 

NEW QUESTION 72
......

Salesforce JavaScript-Developer-I: Selling Salesforce Developer Products and Solutions: https://www.braindumpsit.com/JavaScript-Developer-I_real-exam.html

JavaScript-Developer-I exam dumps and online Test Engine: https://drive.google.com/open?id=16Pp4PeredxMGe2BKNVMWU3ciZHlaKn8S