[Nov 24, 2021] New JavaScript-Developer-I Exam Dumps with High Passing Rate
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Introduction to Salesforce JavaScript Developer I Exam
The credential Salesforce Accredited JavaScript Developer I is meant for applicants who build JavaScript applications for the web stack on the front-end and/or back-end.This validates both key JavaScript expertise and functional skills for applicants, for example, Lightning Components Platform, and Lightning Web Component technology relevant to JavaScript. Lightning web elements are personalised HTML elements that are designed with traditional HTML and modern JavaScript.
The Salesforce JavaScript Developer I certification requires two parts: the multiple-choice test given by the JavaScript Developer I and the Superbadge Lightning Web Components. In any order, all these credentials can be accessed. A Salesforce Certified Javascript Developer I certification is immediately obtained by adding these two certificates. The qualification applicant for Salesforce JavaScript Accredited Developer I will use the JavaScript language to build front-end or back-end software in one or more frameworks. The applicant will plan, build and evaluate effective , safe and reusable solutions.
The candidate can use JavaScript-specific programming style patterns and can use CSS , HTML, and other languages for integrating JavaScript. With Lightning Web Components, any JavaScript developer can build on Salesforce easily. This means that millions of JavaScript developers around the world will code on Salesforce without learning anything new. Developers can create and deploy brand-new fast apps on Salesforce using the current Lightning Platform development services portfolio and the modern JavaScript language. Salesforce JavaScript Developer I Certificate from Salesforce is designed to help Salesforce partners, customers and employees working on JavaScript as well as the Lightning Component Platform, know-how and knowledge and creation of Lightning web components (LWC’s).
How to book the Salesforce JavaScript-Developer-I Exam
There are the following steps for registering the Salesforce JavaScript Developer I exam. Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method
NEW QUESTION 75
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 7 to ) () ;
- B. Change line 9 to sayHello(world) ();
- C. Change line 5 to function world ( ) {
- D. Change line 2 to console.log('Hello' , name() );
Answer: D
NEW QUESTION 76
The developer wants to test the array shown:
Const arr = Array (5) . fill (0);
Which two test are the most accurate for this array? Choose 2 answers
- A. Arr. forEach (elem => console .assert (elem === 0) );
- B. Console,assert(arr.length === 5) ;
- C. Console,assert(arr(0) === 0 $$ arr (arr .longth ) === 0) ;
- D. Console. Assert (arr. Length > 0) ;
Answer: A
NEW QUESTION 77
Refer to the code:
Given the code above, which three properties are set for pet1? Choose 3 answers
- A. owner
- B. speak
- C. canTalk
- D. type
- E. name
Answer: C,D,E
NEW QUESTION 78
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 79
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 80
Which three options show valid methods for creating a fat arrow function? Choose 3 answers
- A. (x, y, z) => (console.log ('executed') ;)
- B. X => {console.log {'executed'} ; }
- C. X, y, z => ( console.log ('executed') ; )
- D. { } => { console.log (executed') ; )
- E. ( ) => { console.log (' executed') ; )
Answer: A,B,E
NEW QUESTION 81
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)
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: D
NEW QUESTION 82
A developer wants to use a try...catch statement to catch any error that countSheep () may throw and pass it to a handleError () function.
What is the correct implementation of the try...catch?
A)
B)
C)
D)
- A. Option
- B. Option
- C. Option
- D. Option
Answer: A
NEW QUESTION 83
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 84
Refer to the code below:
What is the output if this function when called with an empty array?
- A. Return 10
- B. Retruns 0
- C. Throws an error
- D. Return NaN
Answer: A
NEW QUESTION 85
A developer wants to define a function log to be used a few times on a single-file JavaScript script.
01 // Line 1 replacement
02 console.log('"LOG:', logInput);
03 }
Which two options can correctly replace line 01 and declare the function for use?
Choose 2 answers
- A. function leg(logInput) {
- B. function log = (logInput) {
- C. const log = (logInput) => {
- D. const log(loginInput) {
Answer: A,C
NEW QUESTION 86
Refer to the following code:
Which two statements could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers
- A. Object,assign(1eo, tony) ;
- B. Object.assign, assign( 1eo, trigger);
- C. 1eo.roar = () => 9 (console.log('They\'re pretty good1'); 1;
- D. 1eo.prototype.roar = ( ) => ( console.log (They\'re pretty good1'); );
Answer: A,C
NEW QUESTION 87
Refer to the following array:
Let arr1 = [1, 2, 3, 4, 5];
Which two lines of codes result in a second array, arr2, being created such that arr2 is not a reference to arr1? Choose 2 answers
- A. Let arr2 = arr1;
- B. Let arr2 = arr1 sort ();
- C. Let arr2 = Array. From (arr1) ;
- D. Let arr2 = arr1 .slice (0, 5);
Answer: A,B
NEW QUESTION 88
Refer to the following array:
Let arr = [1, 2, 3, 4, 5];
Which three options result in x evaluating as (3, 4, 5)?
Choose 3 answers
- A. Let x = arr.aplice (2, 3);
- B. Let x = arr. Slince (2, 3);
- C. Let x = arr.filter( (a) => )return a > 2 )) ;
- D. Let x = arr.alice (2) ;
- E. Let x = arr.filter( (a) => ( a < 2)) ;
Answer: A,C,D
NEW QUESTION 89
A developer implements and calls the following code when an application state change occurs:
If the back button is clicked after this method is executed, what can a developer expect?
- A. A popstate event is fired with a state properly that details the application's last state.
- B. The page is navigated away from and previous page in the browser's history is loaded.
- C. A navigate event is fired with a state properly that details previous application state.
- D. The page reloads and all JavaScript is reinitialized.
Answer: B
NEW QUESTION 90
A developer has an ErrorMandler module that contains multiple functions.
What kind of export should be leveraged so that multiple function can be used?
- A. Named
- B. Multi
- C. default
- D. All
Answer: A
NEW QUESTION 91
Refer to the code below:
Which two function can replace line 01 and return 58 to sum? Choose 2 answers
- A. const addBy = (num1) num1 + num2
- B. Const addby = function (num1) (
Return function (num2) (
}
} - C. const addBy = num1 (num2) => num1 + num2 ;
- D. const addBy = function (num1) {
Return function (num2) {
}
}
Answer: C,D
NEW QUESTION 92
Which statement accurately describes an aspect of promises?
- A. Agruments for the callback function passed to .then ( ) are optional.
- B. .Them ( ) cannot be added after a catch.
- C. .then ( ) manipulates and returns the original promise.
- D. In a , them ( ) function, returning results is not necessary since callback will catch the result of a previous promise.
Answer: A
NEW QUESTION 93
......
Who should take the Salesforce JavaScript-Developer-I Exam
This course is designed for Javascript developers starting on the Salesforce platform who require programming customizations on front-end and back-end. There are no prerequisites for Salesforce JavaScript Developer I Exam. Typical job roles that align to the Salesforce Certified JavaScript Developer I are as follows:
- Technical Product Manager
- Web application developer
- Front end developer
- Support engineer
- Full stack developer
- Technical Project Manager
- UI/UX Engineer
- Salesforce developer
- Software/backend developer
- JavaScript programmer
JavaScript-Developer-I Dumps To Pass Salesforce Exam in 24 Hours - PassLeader: https://www.passleader.top/Salesforce/JavaScript-Developer-I-exam-braindumps.html
Salesforce JavaScript-Developer-I Actual Questions and Braindumps: https://drive.google.com/open?id=1dK268hJy5XbK8DGY3znmlT0CR95vDkfH