100% PASS RATE Salesforce Developer JavaScript-Developer-I Certified Exam DUMP with 225 Questions
Updates For the Latest JavaScript-Developer-I Free Exam Study Guide!
Average Salary for Salesforce JavaScript-Developer-I Exam Certified Professional
Salesforce JavaScript Developer roles are in great demand nowadays. The average salaries of Salesforce JavaScript Developer I exam Certified professional in:
- Europe - 63,500 Euro
- United State - 129,630 USD
- England - 60,200 POUND
Salesforce JavaScript Developer I Certification Path
You must get an idea of exactly what this certification is, before investing your valuable time, effort, or money in Salesforce. The demand and the need for Salesforce certified professionals are rapidly growing and so Salesforce JavaScript Developer I Certification is becoming more and more popular. Different types of online training sessions are provided such as Intellipaat 's online training sessions for the Salesforce JavaScript Developer I Qualification . It is instructor-led teaching by subject professionals working in major organizations. This style of training includes live sessions with the teacher, along with a forum where you can clear all your course-based doubts.
Self-paced sessions are also offered. This training mode involves pre-recorded video sessions. You can conveniently return to these talks and revisit the subjects you have skipped whether you have any difficulties with the lectures or have difficulty keeping up with the online meetings. You will also use these sessions to finish your exercise at your speed while you access these online lessons throughout your life.
NEW QUESTION 63
Refer to the following code:
Let obj ={
Foo: 1,
Bar: 2
}
Let output =[],
for(let something in obj{
output.push(something);
}
console.log(output);
What is the output line 11?
- A. ["foo:1","bar:2"]
- B. [1,2]
- C. ["bar","foo"]
- D. ["foo","bar"]
Answer: D
NEW QUESTION 64
Refer to the following array:
Let arr1 = [ 1, 2, 3, 4, 5 ];
Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?
- A. Let arr2 = arr1;
- B. Let arr2 = arr1.sort();
- C. Let arr2 = Array.from(arr1);
- D. Let arr2 = arr1.slice(0, 5);
Answer: C,D
NEW QUESTION 65
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?
- A. Replace line 02 with button.addEventListener("onclick", function() {
- B. Replace line 04 with console.log(input .value);
- C. Replace line 03 with const input = document.getElementByName('input');
- D. Replace line 02 with button.addCallback("click", function() {
Answer: B
NEW QUESTION 66
Which statement can a developer apply to increment the browser's navigation history without a page refresh?
Which statement can a developer apply to increment the browser's navigation history without a page refresh?
- A. window.history.pushStare(newStateObject, ' ', null);
- B. window.history.pushState(newStateObject);
- C. window.history.state.push(newStateObject);
- D. window.history.replaceState(newStateObject,' ', null);
Answer: D
NEW QUESTION 67
A developer has an ErrorHandler module that contains multiple functions.
What kind of export should be leveraged so that multiple functions can be used?
- A. all
- B. multi
- C. named
- D. default
Answer: C
NEW QUESTION 68
A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client.
The team wants a web server that runs on Node.Js, and they want to use the new web framework Minimalist.Js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?
Choose 2 answers
- A. Angular
- B. Gatsby
- C. Koa
- D. Express
Answer: A,B
NEW QUESTION 69
Refer to the code:
Given the code above, which three properties are set pet1?
Choose 3 answers:
- A. canTalk
- B. Name
- C. Size
- D. Owner
- E. Type
Answer: A,C,E
NEW QUESTION 70
Refer to the following object:
How can a developer access the fullname property for cat?
- A. Cat.fullname ( )
- B. Cat,get,fullname
- C. Cat.function.fullName
- D. Cat.fullName
Answer: B
NEW QUESTION 71
A developer wants to set up a secure web server with Node.js. The developer create a directory locally called app-server, and the first file is app-server/index, js.
Without using any third-party libraries, what should the developer add to index, js to create the secure web server?
- A. Const server = require ( 'secure-server') ;
- B. Const http = require ('https') ;
- C. Const http = require ('http');
- D. Const tls = require ('tls') ;
Answer: B
NEW QUESTION 72
A developer wants to use a module called DataPrettyPrint. This module exports one default function called printDate ().
How can a developer import and use the printDate() function?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: C
NEW QUESTION 73
Refer to the code below:
Async funct on functionUnderTest(isOK) {
If (isOK) return 'OK' ;
Throw new Error('not OK');
)
Which assertion accurately tests the above code?
- A. Console.assert (await functionUnderTest(true), 'OK')
- B. Console.assert (await functionUnderTest(true), ' OK ')
- C. Console.assert (await functionUnderTest(true), ' not OK ')
- D. Console.assert (await functionUnderTest(true), ' not OK ')
Answer: A
NEW QUESTION 74
A developer is trying to handle an error within a function.
Which code segment shows the correct approach to handle an error without propagating it elsewhere?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
NEW QUESTION 75
A developer is setting up a new Node.js server with a client library that is built using events and callbacks.
The library:
* Will establish a web socket connection and handle receipt of messages to the server
* Will be imported with require, and made available with a variable called we.
The developer also wants to add error logging if a connection fails.
Given this info, which code segment shows the correct way to set up a client with two events that listen at execution time?
- A. ws.on ('connect', ( ) => {
console.log('connected to client'); ws.on('error', (error) => { console.log('ERROR' , error); });
}); - B. try{
ws.connect (( ) => {
console.log('connected to client'); }); - C. ws.on ('connect', ( ) => { console.log('connected to client'); }}; ws.on('error', (error) => { console.log('ERROR' , error); }};
- D. ws.connect (( ) => {
console.log('connected to client'); }).catch((error) => { console.log('ERROR' , error); }};
Answer: C
Explanation:
} catch(error) { console.log('ERROR' , error); };
}
NEW QUESTION 76
A developer is trying to handle an error within a function.
Which code segment shows the correct approach to handle an error without propagating it elsewhere?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
NEW QUESTION 77
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: C
NEW QUESTION 78
Given two expressions var1 and var2. What are two valid ways to return the logical AND of the two expressions and ensure it is data type Boolean ?
Choose 2 answers:
- A. Boolean(var1 && var2)
- B. Boolean(var1) && Boolean(var2)
- C. var1 && var2
- D. var1.toBoolean() && var2toBoolean()
Answer: A,B
NEW QUESTION 79
Refer to the code below:
let timeFunction =() => {
console.log('Timer called.");
};
let timerId = setTimeout (timedFunction, 1000);
Which statement allows a developer to cancel the scheduled timed function?
- A. clearTimeout(timedFunction);
- B. removeTimeout(timerId);
- C. removeTimeout(timedFunction);
- D. clearTimeout(timerId);
Answer: D
NEW QUESTION 80
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. "newUserName"
- B. undefined
- C. "Msg is not defined"
- D. "Username available"
Answer: B
NEW QUESTION 81
Which two console logs outputs NaN ?
Choose 2 answers
- A. console.log(parseInt('two'));
- B. console.log(10/0);
- C. console.log(10/ Number('5'));
- D. console.log(10/ ''five);
Answer: A,D
NEW QUESTION 82
A developer wants to create an object from a function in the browser using the code below.
What happens due to lack of the new keyword on line 02?
- A. Window. === name is assigned to ''hello'' and the variable a n remain undefined.
- B. The n variable is assigned the correct object but this- remains undefined.
- C. Window. n is assigned the correct object.
- D. The a variable is assigned the correct object.
Answer: A
NEW QUESTION 83
Refer to the code below:
for(let number =2 ; number <= 5 ; number += 1 ) {
// insert code statement here
}
The developer needs to insert a code statement in the location shown. The code statement has these requirements:
1. Does require an import
2. Logs an error when the boolean statement evaluates to false
3. Works in both the browser and Node.js
Which meet the requirements?
- A. console.error(number % 2 === 0);
- B. assert (number % 2 === 0);
- C. console.debug(number % 2 === 0);
- D. console.assert(number % 2 === 0);
Answer: A
NEW QUESTION 84
......
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