Valid Salesforce Certified CRT-600 Dumps Ensure Your Passing
CRT-600 Dumps Real Exam Questions Test Engine Dumps Training
NEW QUESTION 25
Refer to the code below:
Let str = 'javascript';
Str[0] = 'J';
Str[4] = 'S';
After changing the string index values, the value of str is 'javascript'. What is the reason for this value:
- A. Non-primitive values are mutable.
- B. Primitive values are mutable.
- C. Non-primitive values are immutable.
- D. Primitive values are immutable.
Answer: D
NEW QUESTION 26
A developer is setting up a new Node.js server with a client library that is built using events and callbacks.
The library:
* Will establish a web socket connection and handle receipt of messages to the server
* Will be imported with require, and made available with a variable called we.
The developer also wants to add error logging if a connection fails.
Given this info, which code segment shows the correct way to set up a client with two events that listen at execution time?
- A. ws.on ('connect', ( ) => {
console.log('connected to client'); ws.on('error', (error) => { console.log('ERROR' , error); });
}); - B. ws.connect (( ) => {
console.log('connected to client'); }).catch((error) => { console.log('ERROR' , error); }}; - C. try{
ws.connect (( ) => {
console.log('connected to client'); });
} catch(error) { console.log('ERROR' , error); };
} - D. ws.on ('connect', ( ) => { console.log('connected to client'); }}; ws.on('error', (error) => { console.log('ERROR' , error); }};
Answer: D
NEW QUESTION 27
Refer to the following code that performs a basic mathematical operation on a provided input:
function calculate(num) {
Return (num +10) / 3;
}
How should line 02 be written to ensure that x evaluates to 6 in the line below?
Let x = calculate (8);
- A. Return Number((num +10) /3 );
- B. Return Number(num + 10) / 3;
- C. Return (Number (num +10 ) / 3;
- D. Return Integer(num +10) /3;
Answer: C
NEW QUESTION 28
What is the result of the code block?
- A. The console logs only 'flag'.
- B. The console logs 'flag' and then an error is thrown.
- C. An error is thrown.
- D. The console logs 'flag' and another flag.
Answer: B
NEW QUESTION 29
Given the code below:
Function myFunction(){
A =5;
Var b =1;
}
myFunction();
console.log(a);
console.log(b);
What is the expected output?
- A. Line 08 thrones an error, therefore line 09 is never executed.
- B. Line 08 outputs the variable, but line 09 throws an error.
- C. Both lines 08 and 09 are executed, and the variables are outputted.
- D. Both lines 08 and 09 are executed, but values outputted are undefined.
Answer: B
NEW QUESTION 30
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 31
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 32
At Universal Containers, every team has its own way of copying JavaScript objects. The code Snippet shows an implementation from one team:
Function Person() {
this.firstName = "John";
this.lastName = 'Doe';
This.name =() => (
console.log('Hello $(this.firstName) $(this.firstName)');
)}
Const john = new Person ();
Const dan = JSON.parse(JSON.stringify(john));
dan.firstName ='Dan';
dan.name();
What is the Output of the code execution?
- A. Hello Dan Doe
- B. TypeError: dan.name is not a function
- C. Hello John DOe
- D. TypeError: Assignment to constant variable.
Answer: B
NEW QUESTION 33
A developer implements and calls the following code when an application state change occurs:
Const onStateChange =innerPageState) => {
window.history.pushState(newPageState, ' ', null);
}
If the back button is clicked after this method is executed, what can a developer expect?
- A. The page reloads and all Javascript is reinitialized.
- B. The page is navigated away from and the previous page in the browser's history is loaded.
- C. A navigate event is fired with a state property that details the previous application state.
- D. A popstate event is fired with a state property that details the application's last state.
Answer: B
NEW QUESTION 34
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 35
Refer to the following code:
<html lang="en">
<body>
<div onclick = "console.log('Outer message') ;">
<button id ="myButton">CLick me<button>
</div>
</body>
<script>
function displayMessage(ev) {
ev.stopPropagation();
console.log('Inner message.');
}
const elem = document.getElementById('myButton');
elem.addEventListener('click' , displayMessage);
</script>
</html>
What will the console show when the button is clicked?
- A. Inner message
Outer message - B. Inner message
- C. Outer message
- D. Outer message
Inner message
Answer: B
NEW QUESTION 36
Which statement accurately describes the behaviour of the async/ await keyworks ?
- A. The associated class contains some asynchronous functions.
- B. The associated sometimes returns a promise.
- C. The associated function will always return a promise
- D. The associated function can only be called via asynchronous methods
Answer: C
NEW QUESTION 37
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. Race is cancelled.
- B. Car 1 crashed in the race.
- C. Car 3 completed the race.
- D. Car 2 completed the race.
Answer: D
NEW QUESTION 38
Refer to the following code:
Let obj ={
Foo: 1,
Bar: 2
}
Let output =[],
for(let something in obj{
output.push(something);
}
console.log(output);
What is the output line 11?
- A. ["foo:1","bar:2"]
- B. [1,2]
- C. ["bar","foo"]
- D. ["foo","bar"]
Answer: D
NEW QUESTION 39
Given HTML below:
<div>
<div id ="row-uc"> Universal Container</div>
<div id ="row-aa">Applied Shipping</div>
<div id ="row-bt"> Burlington Textiles </div>
</div>
Which statement adds the priority = account CSS class to the universal COntainers row ?
- A. Document .querySelector('#row-uc').classes.push('priority-account');
- B. Document .queryElementById('row-uc').addclass('priority-account');
- C. Document .querySelector('#row-uc').classList.add('priority-account');
- D. Document .querySelectorALL('#row-uc').classList.add('priority-account');
Answer: B
NEW QUESTION 40
In which situation should a developer include a try .. catch block around their function call ?
- A. The function has an error that should not be silenced.
- B. The function contains scheduled code.
- C. The function might raise a runtime error that needs to be handled.
- D. The function results in an out of memory issue.
Answer: C
NEW QUESTION 41
Given two expressions var1 and var2. What are two valid ways to return the logical AND of the two expressions and ensure it is data type Boolean ?
Choose 2 answers:
- A. var1 && var2
- B. Boolean(var1) && Boolean(var2)
- C. Boolean(var1 && var2)
- D. var1.toBoolean() && var2toBoolean()
Answer: B,C
NEW QUESTION 42
Which code statement below correctly persists an objects in local Storage ?
- A. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.setItem(storageKey, JSON.stringify(jsObject));
} - B. const setLocalStorage = ( jsObject) => {
window.localStorage.setItem(jsObject);
} - C. const setLocalStorage = ( jsObject) => {
window.localStorage.connectObject(jsObject));
} - D. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.persist(storageKey, jsObject);
}
Answer: A
NEW QUESTION 43
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 44
Refer to the code below:
console.log(''start);
Promise.resolve('Success') .then(function(value){
console.log('Success');
});
console.log('End');
What is the output after the code executes successfully?
- A. Start
End
Success - B. Start
Success
End - C. Success
Start
End - D. End
Start
Success
Answer: A
NEW QUESTION 45
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.prototype.load = function(gamename) {
- B. Console16bit.prototype.load(gamename) = function() {
- C. Console16bit.prototype.load(gamename) {
- D. Console16bit = Object.create(GameConsole.prototype).load = function
(gamename) {
Answer: A
NEW QUESTION 46
Given the following code:
document.body.addEventListener(' click ', (event) => {
if (/* CODE REPLACEMENT HERE */) {
console.log('button clicked!');
)
});
Which replacement for the conditional statement on line 02 allows a developer to correctly determine that a button on page is clicked?
- A. Event.clicked
- B. button.addEventListener('click')
- C. e.nodeTarget ==this
- D. event.target.nodeName == 'BUTTON'
Answer: D
NEW QUESTION 47
Which three actions can be using the JavaScript browser console?
Choose 3 answers:
- A. view , change, and debug the JavaScript code of the page.
- B. View and change security cookies.
- C. Run code that is not related to page.
- D. View and change DOM the page.
- E. Display a report showing the performance of a page.
Answer: A,C,D
NEW QUESTION 48
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. 01234
- B. 02431
- C. 02413
- D. 0
Answer: C
NEW QUESTION 49
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Salesforce CRT-600 Exam Syllabus Topics:
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CRT-600 exam dumps and online Test Engine: https://drive.google.com/open?id=1ajyXQQhcxvkYCA_pjTsn4b6MBSUZCfgr
