2022 Realistic BraindumpQuiz CRT-600 Dumps PDF - 100% Passing Guarantee
Free Salesforce CRT-600 Exam Questions & Answer
Salesforce CRT-600 Exam Syllabus Topics:
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NEW QUESTION 58
Given code below:
setTimeout (() => (
console.log(1);
). 0);
console.log(2);
New Promise ((resolve, reject )) = > (
setTimeout(() => (
reject(console.log(3));
). 1000);
)).catch(() => (
console.log(4);
));
console.log(5);
What is logged to the console?
- A. 2 1 4 3 5
- B. 1 2 5 3 4
- C. 1 2 4 3 5
- D. 2 5 1 3 4
Answer: D
NEW QUESTION 59
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. 'Undefined values!'
- B. 'Null value!'
- C. Undefined
- D. Line 13 throws an error.
Answer: C
NEW QUESTION 60
The developer wants to test this code:
Const toNumber =(strOrNum) => strOrNum;
Which two tests are most accurate for this code?
Choose 2 answers
- A. console.assert(toNumber('-3') < 0);
- B. console.assert(toNumber('2') === 2);
- C. console.assert(Number.isNaN(toNumber()));
- D. console.assert(toNumber () === NaN);
Answer: A,B
NEW QUESTION 61
A developer is required to write a function that calculates the sum of elements in an array but is getting undefined every time the code is executed. The developer needs to find what is missing in the code below.
Const sumFunction = arr => {
Return arr.reduce((result, current) => {
//
Result += current;
//
), 10);
);
Which option makes the code work as expected?
- A. Replace line 02 with return arr.map(( result, current) => (
- B. Replace line 05 with return result;
- C. Replace line 03 with if(arr.length == 0 ) ( return 0; )
- D. Replace line 04 with result = result +current;
Answer: B
NEW QUESTION 62
Refer to the code below:
01 const server = require('server');
02 /* Insert code here */
A developer imports a library that creates a web server. The imported library uses events and callbacks to start the servers Which code should be inserted at the line 03 to set up an event and start the web server ?
- A. console.log( 'Listening on ', port) ;
- B. Server.start ();
- C. server()
- D. server.on(' connect ' , ( port) => {
console.log('Listening on ' , port) ;}) - E. serve(( port) => (
Answer: D
NEW QUESTION 63
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. > 5 >undefined
- B. > 5 > -1
- C. > 5 > 0
- D. > true > false
Answer: A
Explanation:
NEW QUESTION 64
Which statement accurately describes an aspect of promises?
- A. .then() cannot be added after a catch.
- B. In a.then() function, returning results is not necessary since callbacks will catch the result of a previous promise.
- C. Arguments for the callback function passed to .then() are optional.
- D. .then() manipulates and returns the original promise.
Answer: C
NEW QUESTION 65
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 --add when adding the dependency.
- B. The developer added the dependency as a dev dependency, and NODE_ENV is set to production.
- C. The developer missed the option --save when adding the dependency.
- D. The developer added the dependency as a dev dependency, and
NODE_ENV
Is set to production.
Answer: B,C,D
NEW QUESTION 66
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 ( ). done(function(data){
return data;
}); - B. Async runParallel () .then(data);
- C. runParallel () .then(function(data)
return da - D. runParallel () .then(data);
Answer: A,C
NEW QUESTION 67
Universal Containers (UC) notices that its application that allows users to search for accounts makes a network request each time a key is pressed. This results in too many requests for the server to handle.
* Address this problem, UC decides to implement a debounce function on string change handler.
What are three key steps to implement this debounce function?
Choose 3 answers:
- A. When the search string changes, enqueue the request within a setTimeout.
- B. If there is an existing setTimeout and the search string changes, cancel the existing setTimeout using the persisted timerId and replace it with a new setTimeout.
- C. Store the timeId of the setTimeout last enqueued by the search string change handle.
- D. If there is an existing setTimeout and the search string change, allow the existing setTimeout to finish, and do not enqueue a new setTimeout.
- E. Ensure that the network request has the property debounce set to true.
Answer: A,D,E
NEW QUESTION 68
A developer has an ErrorHandler module that contains multiple functions.
What kind of export be leverages so that multiple functions can be used?
- A. Named
- B. Multi
- C. Default
- D. All
Answer: A
NEW QUESTION 69
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) URL.createObjectURL(file); - B. 04 const reader = new FileReader();
08 if (file) reader.readAsDataURL(file); - C. 04 const reader = new File();
08 if (file) reader.readAsDataURL(file); - D. 04 const reader = new File();
08 if (file) URL.createObjectURL(file);
Answer: B
NEW QUESTION 70
Refer to the code below:
const event = new CustomEvent(
//Missing Code
);
obj.dispatchEvent(event);
A developer needs to dispatch a custom event called update to send information about recordId.
Which two options could a developer insert at the placeholder in line 02 to achieve this?
Choose 2 answers
- A. 'Update' , (
recordId : '123abc'
( - B. 'Update' , {
Details : {
recordId : '123abc'
}
} - C. { type : 'update', recordId : '123abc' }
- D. 'Update' , '123abc'
Answer: A,B
NEW QUESTION 71
A developer has the following array of student test grades:
Let arr = [ 7, 8, 5, 8, 9 ];
The Teacher wants to double each score and then see an array of the students who scored more than 15 points.
How should the developer implement the request?
- A. Let arr1 = arr.filter(( val) => ( return val > 15 )) .map (( num) => ( return num *2 ))
- B. Let arr1 = arr.map((num) => ( num *2)).filterBy((val) => ( val >15 ));
- C. Let arr1 = arr.mapBy (( num) => ( return num *2 )) .filterBy (( val ) => return val > 15 )) ;
- D. Let arr1 = arr.map((num) => num*2). Filter (( val) => val > 15);
Answer: D
NEW QUESTION 72
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. Error: myFather.job is not a function
- B. John undefined
- C. Undefined Developer
- D. John Developer
Answer: D
NEW QUESTION 73
A developer is asked to fix some bugs reported by users. To do that, the developer adds a breakpoint for debugging.
Function Car (maxSpeed, color){
This.maxspeed =masSpeed;
This.color = color;
Let carSpeed = document.getElementById(' CarSpeed');
Debugger;
Let fourWheels =new Car (carSpeed.value, 'red');
When the code execution stops at the breakpoint on line 06, which two types of information are available in the browser console ?
Choose 2 answers:
- A. A variable displaying the number of instances created for the Car Object.
- B. The style, event listeners and other attributes applied to the carSpeed DOM element
- C. The information stored in the window.localStorage property
- D. The values of the carSpeed and fourWheels variables
Answer: B,C
NEW QUESTION 74
Refer to the following code that imports a module named utils:
import (foo, bar) from '/path/Utils.js';
foo() ;
bar() ;
Which two implementations of Utils.js export foo and bar such that the code above runs without error?
Choose 2 answers
- A. const foo = () => { return 'foo' ; }
const bar = () => { return 'bar' ; }
export { bar, foo } - B. const foo = () => { return 'foo';}
const bar = () => {return 'bar'; }
Export default foo, bar; - C. Export default class {
foo() { return 'foo' ; }
bar() { return 'bar' ; }
} - D. // FooUtils.js and BarUtils.js exist
Import (foo) from '/path/FooUtils.js';
Import (boo) from ' /path/NarUtils.js';
Answer: A,C
NEW QUESTION 75
A developer wants to iterate through an array of objects and count the objects and count the objects whose property value, name, starts with the letter N.
Const arrObj = [{"name" : "Zach"} , {"name" : "Kate"},{"name" : "Alise"},{"name" : "Bob"},{"name" :
"Natham"},{"name" : "nathaniel"}
Refer to the code snippet below:
01 arrObj.reduce(( acc, curr) => {
02 //missing line 02
02 //missing line 03
04 ). 0);
Which missing lines 02 and 03 return the correct count?
- A. Const sum = curr.startsWith('N') ? 1: 0;
Return acc +sum - B. Const sum = curr.name.startsWith('N') ? 1: 0;
Return acc +sum - C. Const sum = curr.name.startsWIth('N') ? 1: 0;
Return curr+ sum - D. Const sum = curr.startsWIth('N') ? 1: 0;
Return curr+ sum
Answer: C
NEW QUESTION 76
developer removes the HTML class attribute from the checkout button, so now it is simply:
<button>Checkout</button>.
There is a test to verify the existence of the checkout button, however it looks for a button with class= "blue". The test fails because no such button is found.
Which type of test category describes this test?
- A. True negative
- B. False positive
- C. False negative
- D. True positive
Answer: C
NEW QUESTION 77
......
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