JavaScript-Developer-I PDF Download Aug-2022 Salesforce Test To Gain Brilliante Result!
Provide Updated Salesforce JavaScript-Developer-I Dumps as Practice Test and PDF
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 much Salesforce JavaScript-Developer-I Exam Cost
The price of the Salesforce JavaScript Developer I certification is $200 USD, for more information related to the Salesforce JavaScript-Developer-I Exam please visit Salesforce website.
NEW QUESTION 43
Refer to the code below:
01 let car1 = new promise((_, reject) =>
02 setTimeout(reject, 2000, "Car 1 crashed in"));
03 let car2 = new Promise(resolve => setTimeout(resolve, 1500, "Car 2
completed"));
04 let car3 = new Promise(resolve => setTimeout (resolve, 3000, "Car 3
Completed"));
05 Promise.race([car1, car2, car3])
06 .then(value => (
07 let result = $(value) the race. `;
08 ))
09 .catch( arr => (
10 console.log("Race is cancelled.", err);
11 ));
What is the value of result when Promise.race executes?
- A. Car 3 completed the race.
- B. Car 2 completed the race.
- C. Race is cancelled.
- D. Car 1 crashed in the race.
Answer: B
NEW QUESTION 44
Given the code below:
Which three code segments result in a correct conversion from number to string? Choose 3 answers
- A. let scrValue = String(numValue);
- B. let strValue = * * 4 numValue;
- C. let strValue = numValue.toText ();
- D. let strValue = numValue. toString();
- E. let strValue = (String)numValue;
Answer: A,B,D
NEW QUESTION 45
Which two console logs output NaN?
Choose 2 answers | |
- A. console.log(parseInt ' ("two')) ;
- B. console.log(10 / 0);
- C. console.loeg(10 / 'five');
- D. console.log(10 / Number('5) ) ;
Answer: A,D
NEW QUESTION 46
A developer is debugging a web server that uses Node.js. The server hits a runtime error every third request to an important endpoint on the web server.
The developer added a break point to the start script, that is at index, js at the root of the server's source code. The developer wants to make use of Chrome DevTools to debug.
Which command can be run to access DevTools and make sure the breakpoint is hit?
- A. Node --inspect -brk index , js
- B. Node -- inspect index ,js
- C. Node inspect index , js
- D. Node -I index , js
Answer: B
NEW QUESTION 47
A developer creates a generic function to log custom messages In the console. To do this, the function below is implemented.
Which three console logging methods allow the use of string substitution in line 02?
Choose 3 answers
- A. Assert
- B. Log
- C. error
- D. Info
- E. Message
Answer: A,C,E
NEW QUESTION 48
Which code statement below correctly persists an objects in local Storage ?
- A. const setLocalStorage = ( jsObject) => {
window.localStorage.setItem(jsObject);
} - B. const setLocalStorage = ( jsObject) => {
window.localStorage.connectObject(jsObject));
} - C. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.persist(storageKey, jsObject);
} - D. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.setItem(storageKey, JSON.stringify(jsObject));
}
Answer: D
Explanation:
NEW QUESTION 49
Given the code below:
01 function GameConsole (name) {
02 this.name = name;
03 }
04
05 GameConsole.prototype.load = function(gamename) {
06 console.log( ` $(this.name) is loading a game : $(gamename) ...`);
07 )
08 function Console 16 Bit (name) {
09 GameConsole.call(this, name) ;
10 }
11 Console16bit.prototype = Object.create ( GameConsole.prototype) ;
12 //insert code here
13 console.log( ` $(this.name) is loading a cartridge game : $(gamename) ...`);
14 }
15 const console16bit = new Console16bit(' SNEGeneziz ');
16 console16bit.load(' Super Nonic 3x Force ');
What should a developer insert at line 15 to output the following message using the method ?
> SNEGeneziz is loading a cartridge game: Super Monic 3x Force . . .
- A. Console16bit = Object.create(GameConsole.prototype).load = function
(gamename) { - B. Console16bit.prototype.load(gamename) = function() {
- C. Console16bit.prototype.load = function(gamename) {
- D. Console16bit.prototype.load(gamename) {
Answer: C
NEW QUESTION 50
Given the following code:
Let x = ('15' +10) +2;
What is the value of x?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 51
Refer to code below:
Let productSKU = '8675309' ;
A developer has a requirement to generate SKU numbers that are always 19 characters lon, starting with 'sku', and padded with zeros.
Which statement assigns the values sku0000000008675309 ?
- A. productSKU = productSKU .padStart (19. '0').padstart('sku');
- B. productSKU = productSKU .padEnd (16. '0').padstart(19, 'sku');
- C. productSKU = productSKU .padStart (16. '0').padstart(19, 'sku');
- D. productSKU = productSKU .padEnd (16. '0').padstart('sku');
Answer: C
NEW QUESTION 52
Refer to the string below:
const str = 'Salesforce';
Which two statements result in the word 'Sales'?
Choose 2 answers
- A. str.substring (0, 5);
- B. str.substr(1, 5);
- C. str.substr (0, 5);
- D. str.substring (1, 5);
Answer: A,C
NEW QUESTION 53
Refer to the code below:
Which code executes syhello once, two minutes from now?
- A. SetTimeout (sayhello( ), 120000) ;
- B. SetInterval (sayhello, 120000) ;
- C. SetTimeout (sayhello, 120000) ;
- D. delay (sayhello, 120000) ;
Answer: A
NEW QUESTION 54
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 ?
- A. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt - B. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is aScarf
This is a discounted Shirt - C. This is aScarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a did counted Shirt - D. This is a Scarf
This is a Shirt
This is a discounted Scarf
This is a discounted Shirt
Answer: A
NEW QUESTION 55
Refer to the code below:
Const searchTest = 'Yay! Salesforce is amazing!" ;
Let result1 = searchText.search(/sales/i);
Let result 21 = searchText.search(/sales/i);
console.log(result1);
console.log(result2);
After running this code, which result is displayed on the console?
- A. > true > false
- B. > 5 > 0
- C. > 5 >undefined
- D. > 5 > -1
Answer: C
Explanation:
NEW QUESTION 56
Which two code snippets show working examples of a recursive function?
Choose 2 answers
A)
B)
C)
D)
- A. Option B
- B. Option A
- C. Option C
- D. Option D
Answer: C,D
NEW QUESTION 57
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. Promise, rejected (Cool error here'), then (error => console (error ));
- C. New promise (() => (throw 'Cool error here ')) , then ((null, error => console, (error)));
- D. New Promise((resolve, reject) => ( throw 'Cool error here')) .catch (error => console (error ));
Answer: C,D
NEW QUESTION 58
At Universal Containers, every team has its own way of copying JavaScript objects. The code snippet shows an Implementation from one team:
What is the output of the code execution?
- A. Hello Dan Doe
- B. Hello Dan
- C. SyntaxError: Unexpected token in JSON
- D. Hello John Doe
Answer: C
NEW QUESTION 59
Considering type coercion, what does the following expression evaluate to?
True + '13' + NaN
- A. ' true13NaN '
- B. 0
- C. ' true13 '
- D. ' 113Nan '
Answer: A
NEW QUESTION 60
......
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