[Oct 09, 2022] RealValidExam CRT-600 dumps & Salesforce Certified sure practice dumps
Salesforce CRT-600 Actual Questions and Braindumps
NEW QUESTION 128
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. removeTimeout(timerId);
- B. clearTimeout(timedFunction);
- C. clearTimeout(timerId);
- D. removeTimeout(timedFunction);
Answer: C
NEW QUESTION 129
Which two options are core Node.js modules?
Choose 2 answers
- A. isotream
- B. http
- C. worker
- D. exception
Answer: A,B
NEW QUESTION 130
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. Async runParallel () .then(data);
- B. runParallel ( ). done(function(data){
return data;
}); - C. runParallel () .then(function(data)
return data - D. runParallel () .then(data);
Answer: B,C
NEW QUESTION 131
developer uses the code below to format a date.
After executing, what is the value of formattedDate?
- A. June 10, 2020
- B. November 05, 2020
- C. May 10, 2020
- D. October 05, 2020
Answer: C
NEW QUESTION 132
Refer to the code below:
What is the output of this function when called with an empty array?
- A. Return 0
- B. Return NaN
- C. Return Infinity
- D. Return 5
Answer: D
NEW QUESTION 133
What are two unique features of functions defined with a fat arrow as compared to normal function definition?
Choose 2 answers
- A. The function uses the this from the enclosing scope.
- B. The function receives an argument that is always in scope, called parentThis, which is the enclosing lexical scope.
- C. The function generated its own this making it useful for separating the function's scope from its enclosing scope.
- D. If the function has a single expression in the function body, the expression will be evaluated and implicit returned.
Answer: B,C
NEW QUESTION 134
A developer receives a comment from the Tech Lead that the code given below has error:
const monthName = 'July';
const year = 2019;
if(year === 2019) {
monthName = 'June';
}
Which line edit should be made to make this code run?
- A. 03 if (year == 2019) {
- B. 01 let monthName ='July';
- C. 02 let year =2019;
- D. 02 const year = 2020;
Answer: B
NEW QUESTION 135
In which situation should a developer include a try .. catch block around their function call ?
- A. The function might raise a runtime error that needs to be handled.
- B. The function results in an out of memory issue.
- C. The function contains scheduled code.
- D. The function has an error that should not be silenced.
Answer: A
NEW QUESTION 136
Refer to code below:
function Person() {
this.firstName = 'John';
}
Person.prototype ={
Job: x => 'Developer'
};
const myFather = new Person();
const result =myFather.firstName + ' ' + myFather.job();
What is the value of the result after line 10 executes?
- A. John undefined
- B. Undefined Developer
- C. Error: myFather.job is not a function
- D. John Developer
Answer: D
NEW QUESTION 137
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?
- A. C
- B. D
- C. B
- D. A
Answer: D
NEW QUESTION 138
A developer is leading the creation of a new browser application that will serve a single page application. The team wants to use a new web framework Minimalsit.js. The Lead developer wants to advocate for a more seasoned web framework that already has a community around it.
Which two frameworks should the lead developer advocate for?
Choose 2 answers
- A. Koa
- B. Angular
- C. Vue
- D. Express
Answer: B,D
NEW QUESTION 139
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 C
- C. Option D
- D. Option B
Answer: C
NEW QUESTION 140
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
- A. The line 05 assertion passes.
- B. The line 05 assertion fails.
- C. The line 02 assertion fails
- D. The line 02 assertion passes.
Answer: B,D
NEW QUESTION 141
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 https =require('https');
- B. const server =require('secure-server');
- C. const tls = require('tls');
- D. const http =require('http');
Answer: A
NEW QUESTION 142
Refer to the following code:
Which two statement could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers
- A. Object.assign (leo. Tiger);
- B. leo.prototype.roar = ( ) =>( console.log('They\'re pretty good!'); };
- C. leo.roar = () => { console.log('They\'re pretty good!'); );
- D. Object.assign (leo, tony);
Answer: C,D
NEW QUESTION 143
A team that works on a big project uses npm to deal with projects dependencies.
A developer added a dependency does not get downloaded when they execute npm install.
Which two reasons could be possible explanations for this?
Choose 2 answers
- A. The developer missed the option --save when adding the dependency.
- B. The developer missed the option --add when adding the dependency.
- C. The developer added the dependency as a dev dependency, and NODE_ENV is set to production.
- D. The developer added the dependency as a dev dependency, and
NODE_ENV
Is set to production.
Answer: A,C,D
NEW QUESTION 144
Refer to the following code:
function test (val) {
If (val === undefined) {
return 'Undefined values!' ;
}
if (val === null) {
return 'Null value! ';
}
return val;
}
Let x;
test(x);
What is returned by the function call on line 13?
- A. Line 13 throws an error.
- B. 'Undefined values!'
- C. Undefined
- D. 'Null value!'
Answer: C
NEW QUESTION 145
Why would a developer specify a package.jason as a developed forge instead of a dependency ?
- A. It is only needed for local development and testing.
- B. Other required packages depend on it for development.
- C. It should be bundled when the package is published.
- D. It is required by the application in production.
Answer: A
NEW QUESTION 146
Refer to following code block:
Let array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,];
Let output =0;
For (let num of array){
if (output >0){
Break;
}
if(num % 2 == 0){
Continue;
}
Output +=num;
What is the value of output after the code executes?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 147
A developer wants to create an object from a function in the browser using the code below.
What happens due to the lack of the mm keyword on line 02?
- A. window.m Is assigned the correct object.
- B. The m variable is assigned the correct object.
- C. The m variable is assigned the correct object but this.name remains undefined.
- D. window.name is assigned to 'hello' and the variable = remains undefined.
Answer: D
NEW QUESTION 148
Universal Containers recently launched its new landing page to host a crowd-funding campaign. The page uses an external library to display some third-party ads. Once the page is fully loaded, it creates more than 50 new HTML items placed randomly inside the DOM, like the one in the code below:
All the elements includes the same ad-library-item class, They are hidden by default, and they are randomly displayed while the user navigates through the page.
- A. Use the browser console to execute a script that prevents the load event to be fired.
- B. Use the DOM inspector to prevent the load event to be fired.
- C. Use the DOM inspector to remove all the elements containing the class ad-library-item.
- D. Use the browser to execute a script that removes all the element containing the class ad-library-item.
Answer: D
NEW QUESTION 149
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.state.push(newStateObject);
- C. window.history.replaceState(newStateObject,' ', null);
- D. window.history.pushState(newStateObject);
Answer: C
NEW QUESTION 150
......
Latest CRT-600 Pass Guaranteed Exam Dumps with Accurate & Updated Questions: https://www.realvalidexam.com/CRT-600-real-exam-dumps.html
Pass CRT-600 Exam with Updated CRT-600 Exam Dumps PDF 2022: https://drive.google.com/open?id=1RFlIN7z10v1ovLt7DNTevWrsRpNuaEiF
