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[May 03, 2022] Get Free Updates Up to 365 days On Developing JavaScript-Developer-I Braindumps

Best Quality Salesforce JavaScript-Developer-I Exam Questions

How to Prepare for Salesforce JavaScript Developer I Exam

Preparation Guide for Salesforce JavaScript Developer I Exam

Introduction

Salesforce is a solution for managing customer relationships that unite customers and companies. This is an interactive CRM platform that provides a single, shared view of every client in all the divisions including marketing, distribution, exchange, and operation. Provide the clients with the individual experience Salesforce demand 360 product via the Integrated CRM Platform. It delivers solid and related goods to boost marketing, revenue, exchange, operation, IT, and more. Salesforce is a digital cloud computing (SaaS) firm specializing in the management of client relationships (CRMs). There was a mistake. The app is now the number one of consumer satisfaction and allows organizations to track customer behavior, advertise to consumers, and more. Salesforce is common because it is bundled with features such as contact management, workflow development, task management, incentive monitoring, teamwork tools, customer experience tools, analytics, and interactive, smartphone dashboard.

 

NEW QUESTION 28
Refer to the code snippet below:
Let array = [1, 2, 3, 4, 4, 5, 4, 4];
For (let i =0; i < array.length; i++){
if (array[i] === 4) {
array.splice(i, 1);
}
}
What is the value of the array after the code executes?

 
 
 
 

NEW QUESTION 29
Refer to the code below:
Let textvalue = ‘1984’;
Which code segment shows a correct way to convert this string to an integer?

 
 
 
 

NEW QUESTION 30
In the browser, the window object is often used to assign variables that require the broadcast scope in an application Node is application do not have access to the window object by default.
Which two methods are used to address this? Choose 2 answer

 
 
 
 

NEW QUESTION 31
Considering the implications of ‘use strict’ on line 04, which three statements describe the execution of the code?
Choose 3 answers

 
 
 
 
 

NEW QUESTION 32
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?

 
 
 
 

NEW QUESTION 33
A Developer wrote the following code to test a sum3 function that takes in an array of
numbers and returns the sum of the first three number in the array, The test passes:
Let res = sum2([1, 2, 3 ]) ;
console.assert(res === 6 );
Res = sum3([ 1, 2, 3, 4]);
console.assert(res=== 6);
A different developer made changes to the behavior of sum3 to instead sum all of the numbers
present in the array. The test passes:
Which two results occur when running the test on the updated sum3 function ?
Choose 2 answers

 
 
 
 

NEW QUESTION 34
Which option is true about the strict mode in imported modules?

 
 
 
 

NEW QUESTION 35
Refer to the code below:

Why does the function bar have access to variable =?

 
 
 
 

NEW QUESTION 36
Refer to the following code that performs a basic mathematical operation on a provided
input:
function calculate(num) {
Return (num +10) / 3;
}
How should line 02 be written to ensure that x evaluates to 6 in the line below?
Let x = calculate (8);

 
 
 
 

NEW QUESTION 37
Refer to the code below:

What is the value of result when the code executes?

 
 
 
 

NEW QUESTION 38
A developer creates a simple webpage with an input field. When a user enters text in
the input field and clicks the button, the actual value of the field must be displayed in the
console.
Here is the HTML file content:
<input type =” text” value=”Hello” name =”input”>
<button type =”button” >Display </button>
The developer wrote the javascript code below:
Const button = document.querySelector(‘button’);
button.addEvenListener(‘click’, () => (
Const input = document.querySelector(‘input’);
console.log(input.getAttribute(‘value’));
When the user clicks the button, the output is always “Hello”.
What needs to be done make this code work as expected?

 
 
 
 

NEW QUESTION 39
Refer to the following code:
<html lang=”en”>
<body>
<div onclick = “console.log(‘Outer message’) ;”>
<button id =”myButton”>CLick me<button>
</div>
</body>
<script>
function displayMessage(ev) {
ev.stopPropagation();
console.log(‘Inner message.’);
}
const elem = document.getElementById(‘myButton’);
elem.addEventListener(‘click’ , displayMessage);
</script>
</html>
What will the console show when the button is clicked?

 
 
 
 

NEW QUESTION 40
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?

A)

B)

C)

D)

 
 
 
 

NEW QUESTION 41
Refer to the code below:

Considering that JavaScript is single-threaded, what is the output of line 08 after the code executes?

 
 
 
 

NEW QUESTION 42
A class was written to represent items for purchase in an online store, and a second class
Representing items that are on sale at a discounted price. THe constructor sets the name to the
first value passed in. The pseudocode is below:
Class Item {
constructor(name, price) {
… // Constructor Implementation
}
}
Class SaleItem extends Item {
constructor (name, price, discount) {
…//Constructor Implementation
}
}
There is a new requirement for a developer to implement a description method that will return a
brief description for Item and SaleItem.
Let regItem =new Item(‘Scarf’, 55);
Let saleItem = new SaleItem(‘Shirt’ 80, -1);
Item.prototype.description = function () { return ‘This is a ‘ + this.name;
console.log(regItem.description());
console.log(saleItem.description());
SaleItem.prototype.description = function () { return ‘This is a discounted ‘ +
this.name; }
console.log(regItem.description());
console.log(saleItem.description());
What is the output when executing the code above ?

 
 
 
 

NEW QUESTION 43
Refer to the code below:
let o = {
get js() {
let city1 = String(“st. Louis”);
let city2 = String(” New York”);
return {
firstCity: city1.toLowerCase(),
secondCity: city2.toLowerCase(),
}
}
}
What value can a developer expect when referencing o.js.secondCity?

 
 
 
 

NEW QUESTION 44
A developer has the following array of student test grades:
Let arr = [ 7, 8, 5, 8, 9 ];
The Teacher wants to double each score and then see an array of the students who scored more than 15 points.
How should the developer implement the request?

 
 
 
 

NEW QUESTION 45
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?

 
 
 
 

NEW QUESTION 46
Given the following code:
Let x = (’15’ +10) +2;
What is the value of x?

 
 
 
 

NEW QUESTION 47
Given the expressions var1 and var2, what are two valid ways to return the concatenation of the two expressions and ensure it is string? Choose 2 answers

 
 
 
 

NEW QUESTION 48
A developer at Universal Containers is creating their new landing page based on HTML, CSS, and JavaScript. The website includes multiple external resources that are loaded when the page is opened.
To ensure that visitors have a good experience, a script named personalizeWebsiteContent needs to be executed when the webpage Is loaded and there Is no need to wait for the resources to be available.
Which statement should be used to call personalizeWebsiteContent based on the above business requirement?

 
 
 
 

NEW QUESTION 49
A developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality.
The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.
Given the code and the information the developer has, which code logs an error at boot time with an event?
A)

B)

C)

D)

 
 
 
 

NEW QUESTION 50
Refer to code below:
Let a =’a’;
Let b;
// b = a;
console.log(b);
What is displayed when the code executes?

 
 
 
 

NEW QUESTION 51
Refer to the following code:
Let sampleText = ‘The quick brown fox jumps’;
A developer needs to determine if a certain substring is part of a string.
Which three expressions return true for the given substring ?
Choose 3 answers

 
 
 
 
 

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