Pass Salesforce CRT-600 Exam in First Attempt Guaranteed [Aug-2023]
Exam Sure Pass Salesforce Certification with CRT-600 exam questions
To be eligible for the CRT-600 exam, candidates must have a solid understanding of JavaScript programming concepts, as well as experience using JavaScript to build custom applications on the Salesforce platform. Candidates should also be familiar with the Salesforce Lightning component framework, including the use of Aura components and the Lightning Web Components programming model.
NEW QUESTION # 24
A developer creates an object where its properties should be immutable and prevent properties from being added or modified.
Which method should be used to execute this business requirement ?
- A. Object.const()
- B. Object.freeze()
- C. Object.lock()
- D. Object.eval()
Answer: B
NEW QUESTION # 25
In the browser, the window object is often used to assign variables that require the broadest scope in an application Node.js application does not have access to the window object by default.
Which two methods are used to address this ?
Choose 2 answers
- A. Use the document object instead of the window object.
- B. Assign variables to module.exports and require them as needed.
- C. Create a new window object in the root file.
- D. Assign variables to the global object.
Answer: D
NEW QUESTION # 26
Refer to code below:
console.log(0);
setTimeout(() => (
console.log(1);
});
console.log(2);
setTimeout(() => {
console.log(3);
), 0);
console.log(4);
In which sequence will the numbers be logged?
- A. 02413
- B. 02431
- C. 0
- D. 01234
Answer: B
NEW QUESTION # 27
A developer is debugging a web server that uses Node.js The server hits a runtimeerror 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 he 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 breakdown is hit ?
- A. Node --inspect-brk index.js
- B. Node --inspect index.js
- C. node -i index.js
- D. Node inspect index.js
Answer: B
NEW QUESTION # 28
Which function should a developer use to repeatedly execute code at a fixed interval ?
- A. setTimeout
- B. setPeriod
- C. setInteria
- D. setIntervel
Answer: D
NEW QUESTION # 29
Refer to the string below:
const str = 'Salesforce';
Which two statements result in the word 'Sales'?
Choose 2 answers
- A. str.substr (0, 5);
- B. str.substring (0, 5);
- C. str.substr(1, 5);
- D. str.substring (1, 5);
Answer: A,B
NEW QUESTION # 30
A developer writers the code below to calculate the factorial of a given number.
Function factorial(number) {
Return number + factorial(number -1);
}
factorial(3);
What is the result of executing line 04?
- A. -Infinity
- B. 0
- C. RuntimeError
- D. 1
Answer: C
NEW QUESTION # 31
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 (16. '0').padstart(19, 'sku');
- B. productSKU = productSKU .padEnd (16. '0').padstart(19, 'sku');
- C. productSKU = productSKU .padStart (19. '0').padstart('sku');
- D. productSKU = productSKU .padEnd (16. '0').padstart('sku');
Answer: A
NEW QUESTION # 32
Refer to the HTML below:
Which JavaScript statement results in changing " The Lion."?
- A. document.querySelector('$main li.Tony').innerHTML = '" The Lion ';
- B. document.querySelector('$main li:nth-child(2)'),innerHTML = " The Lion. ';
- C. document.querySelectorAll('$main $TONY').innerHTML = '" The Lion
- D. document.querySelector('$main li:second-child').innerHTML = " The Lion ';
Answer: C
NEW QUESTION # 33
A developer wants to set up a secure web server with Node.js. The developer creates 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 http =require('http');
- B. const https =require('https');
- C. const server =require('secure-server');
- D. const tls = require('tls');
Answer: B
NEW QUESTION # 34
Refer to the following object.
How can a developer access the fullName property for dog?
- A. Dog.fullName
- B. Dog, function, fullName
- C. Dog.fullName ( )
- D. Dog, get, fullName
Answer: A
NEW QUESTION # 35
developer has a web server running with Node.js. The command to start the web server is node server,js. The web server started having latency issues. Instead of a one second turn around for web requests, the developer now sees a five second turnaround, Which command can the web developer run to see what the module is doing during the latency period?
- A. DEBUG =true node server.js
- B. NODE_DEBUG =http, https node server.js
- C. DEBUG = http, https node server.js
- D. NODE_DEBUG =true node server.js
Answer: A
NEW QUESTION # 36
Refer to the code below:
Let textValue = '1984';
Which code assignment shows a correct way to convert this string to an integer?
- A. Let numberValue = textValue.toInteger();
- B. Let numberValue = Integer(textValue);
- C. Let numberValue = (Number)textValue;
- D. let numberValue = Number(textValue);
Answer: D
NEW QUESTION # 37
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 boost with an event?
- A. Server.catch ((server) => {
console.log('ERROR', error);
}); - B. Try{
server.start();
} catch(error) { - C. Server.on ('error', (error) => {
console.log('ERROR', error);
}); - D. Server.error ((server) => {
console.log('ERROR', error);
});
Answer: C
Explanation:
console.log('ERROR', error);
}
NEW QUESTION # 38
GIven a value, which three options can a developer use to detect if the value is NaN?
Choose 3 answers !
- A. Object.is(value, NaN)
- B. Number.isNaN(value)
- C. value == NaN
- D. value ! == value
- E. value === Number.NaN
Answer: B,C
NEW QUESTION # 39
Cloud Kicks has a class to represent items for sale in an online store, as shown below:
Class Item{
constructor (name, price){
this.name = name;
this.price = price;
}
formattedPrice(){
return 's' + String(this.price);}}
A new business requirement comes in that requests a ClothingItem class that should have all of the properties and methods of the Item class but will also have properties that are specific to clothes.
Which line of code properly declares the clothingItem class such that it inherits from Item?
- A. Class ClothingItem extends Item {
- B. Class ClothingItem implements Item{
- C. Class ClothingItem super Item {
- D. Class ClothingItem {
Answer: A
NEW QUESTION # 40
A developer has an is Dog function that takes one argument cat. They want to schedule the function to run every minute.
What is the correct syntax for scheduling this function?
- A. setInterval(isDog, 60000,'cat');
Answer: A
NEW QUESTION # 41
is below:
<input type="file" onchange="previewFile()">
<img src="" height="200" alt="Image Preview..."/>
The JavaScript portion is:
01 function previewFile(){
02 const preview = document.querySelector('img');
03 const file = document.querySelector('input[type=file]').files[0];
04 //line 4 code
05 reader.addEventListener("load", () => {
06 preview.src = reader.result;
07 },false);
08 //line 8 code
09 }
In lines 04 and 08, which code allows the user to select an image from their local computer , and to display the image in the browser?
- A. 04 const reader = new FileReader();
08 if (file) reader.readAsDataURL(file); - B. 04 const reader = new File();
08 if (file) URL.createObjectURL(file); - C. 04 const reader = new FileReader();
08 if (file) URL.createObjectURL(file); - D. 04 const reader = new File();
08 if (file) reader.readAsDataURL(file);
Answer: A
NEW QUESTION # 42
A developer initiates a server with the file server,js and adds dependencies in the source codes package,json that are required to run the server.
Which command should the developer run to start the server locally?
- A. start server,js
- B. npm start
- C. npm start server,js
- D. node start
Answer: B
NEW QUESTION # 43
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 = numValue.toText ();
- C. let strValue = numValue. toString();
- D. let strValue = * * 4 numValue;
- E. let strValue = (String)numValue;
Answer: A,C,D
NEW QUESTION # 44
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), ' not OK ')
- C. Console.assert (await functionUnderTest(true), ' OK ')
- D. Console.assert (await functionUnderTest(true), ' not OK ')
Answer: A
NEW QUESTION # 45
Refer to the code below:
01 const exec = (item, delay) =>{
02 new Promise(resolve => setTimeout( () => resolve(item), delay)),
03 async function runParallel() {
04 Const (result1, result2, result3) = await Promise.all{
05 [exec ('x', '100') , exec('y', 500), exec('z', '100')]
06 );
07 return `parallel is done: $(result1) $(result2)$(result3)`;
08 }
}
}
Which two statements correctly execute the runParallel () function?
Choose 2 answers
- A. runParallel () .then(data);
- B. runParallel () .then(function(data)
return da - C. runParallel ( ). done(function(data){
return data;
}); - D. Async runParallel () .then(data);
Answer: B,C
NEW QUESTION # 46
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Salesforce is a widely used cloud-based customer relationship management (CRM) software that helps businesses manage their sales, marketing, and customer service activities. To become proficient in Salesforce, developers need to possess a strong understanding of JavaScript, a programming language used to build interactive web applications, including those on the Salesforce platform. The Salesforce Certified JavaScript Developer I (CRT-600) exam is designed to test the proficiency of developers in JavaScript development within the Salesforce environment.
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