Exam Dumps VCE

NO.63 Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?

A)

B)

C)

D)

NO.64 Considering type coercion, What does the following expression evaluate to?
True + ) + ‘100 ‘ + null

NO.65 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)

NO.66 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?

NO.67 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

NO.68 Given the following code:
Counter = 0;
const logCounter = () => {
console.log(counter);
);
logCounter();
setTimeout(logCOunter, 1100);
setInterval(() => {
Counter++
logCounter();
}, 1000);
What is logged by the first four log statements?

NO.69 Refer to the code below:

A developer import a library that creates a web server. the imported library uses events and callback to start the server.
Which code should be inserted at line 03 to set up an event and start the web server?

NO.70 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:

NO.71 Refer to the HTML below:

Which JavaScript statement results in changing ”Tony” to ”Mr. T. ”?

NO.72 Refer to the code snippet:
Function getAvailabilityMessage(item) {
If (getAvailability(item)){
Var msg =”Username available”;
}
Return msg;
}
A developer writes this code to return a message to user attempting to register a new username. If the username is available, variable.
What is the return value of msg hen getAvailabilityMessage (“newUserName” ) is executed and getAvailability(“newUserName”) returns false?

NO.73 Given the following code:
Let x = (’15’ +10) +2;
What is the value of x?

NO.74 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?

NO.75 Why would a developer specify a package.jason as a developed forge instead of a dependency ?

NO.76 Which statement accurately describes the behaviour of the async/ await keyworks ?

NO.77 Which JavaScript method can be used to serialize an object into a string and deserialize a JSON string into an object, respectively?

NO.78 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?