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NEW QUESTION 75
Refer to the code below:
new Promise((resolve, reject) => {
const fraction = Math.random();
if( fraction >0.5) reject("fraction > 0.5, " + fraction);
resolve(fraction);
})
.then(() =>console.log("resolved"))
.catch((error) => console.error(error))
.finally(() => console.log(" when am I called?"));
When does Promise.finally on line 08 get called?
- A. When resolved or rejected
- B. When resolved
- C. When resolved and settled
- D. When rejected
Answer: A
NEW QUESTION 76
Given the HTML below:
Which statement adds the priority-account css class to the Applied Shipping row?
Answer:
Explanation:
document.querySelector('#row-as').classList.add('priority-account');
NEW QUESTION 77
Refer to HTML below:
<div id ="main">
<div id = " card-00">This card is smaller.</div>
<div id = "card-01">The width and height of this card is determined by its
contents.</div>
</div>
Which expression outputs the screen width of the element with the ID card-01?
- A. document.getElementById(' card-01 ').getBoundingClientRest().width
- B. document.getElementById(' card-01 ').innerHTML.lenght*e
- C. document.getElementById(' card-01 ').width
- D. document.getElementById(' card-01 ').style.width
Answer: A
NEW QUESTION 78
Given the JavaScript below:
01 function filterDOM (searchString) {
02 const parsedSearchString = searchString && searchString.toLowerCase() ;
03 document.quesrySelectorAll(' .account' ) . forEach(account => (
04 const accountName = account.innerHTML.toLOwerCase();
05 account. Style.display = accountName.includes(parsedSearchString) ? /*Insert
code*/;
06 )};
07 }
Which code should replace the placeholder comment on line 05 to hide accounts that do
not match the search string?
- A. ' visible ' : ' hidden '
- B. ' name ' : ' block '
- C. ' Block ' : ' none '
- D. ' hidden ' : ' visible '
Answer: C
NEW QUESTION 79
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 implements Item{
- B. Class ClothingItem {
- C. Class ClothingItem super Item {
- D. Class ClothingItem extends Item {
Answer: D
NEW QUESTION 80
Which option is a core Node;js module?
- A. locale
- B. Ios
- C. Memory
- D. Path
Answer: B,D
NEW QUESTION 81
Given the code below:
Which method can be used to provide a visual representation of the list of users and to allow sorting by the name or email attribute?
- A. console.table(usersList) ;
- B. console.groupCol lapsed (usersList) ;
- C. console.info(usersList) ;
- D. console.group(usersList) ;
Answer: D
NEW QUESTION 82
A class was written to represent items for purchase in an online store, and a second class Representing items that are on sale at a discounted price. THe constructor sets the name to the first value passed in. The pseudocode is below:
Class Item {
constructor(name, price) {
... // Constructor Implementation
}
}
Class SaleItem extends Item {
constructor (name, price, discount) {
...//Constructor Implementation
}
}
There is a new requirement for a developer to implement a description method that will return a brief description for Item and SaleItem.
Let regItem =new Item('Scarf', 55);
Let saleItem = new SaleItem('Shirt' 80, -1);
Item.prototype.description = function () { return 'This is a ' + this.name; console.log(regItem.description()); console.log(saleItem.description()); SaleItem.prototype.description = function () { return 'This is a discounted ' + this.name; } console.log(regItem.description()); console.log(saleItem.description()); What is the output when executing the code above ?
- A. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt - B. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is aScarf
This is a discounted Shirt - C. This is aScarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a did counted Shirt - D. This is a Scarf
This is a Shirt
This is a discounted Scarf
This is a discounted Shirt
Answer: A
NEW QUESTION 83
A developer uses a parsed JSON string to work with user information as in the block below:
01 const userInformation ={
02 " id " : "user-01",
03 "email" : "[email protected]",
04 "age" : 25
Which two options access the email attribute in the object?
Choose 2 answers
- A. userInformation.email
- B. userInformation.get("email")
- C. userInformation(email)
- D. userInformation("email")
Answer: A,D
NEW QUESTION 84
Refer to the string below.
Const str='Salesforce';
Which two statements results in the word 'Sales'?
Answer:
Explanation:
See the Answer below in explanation:
Explanation
Str.substring(0,5);
Str.substr(0,5);
NEW QUESTION 85
Refer to the following code that performs a basis mathematical operation on a provided input:
How should line o2 be written to ensure that x evaluated to 6 in the line below?
Let x calculate (''g'');
- A. Return Number (num) + 10) / 3);
- B. Return integer (num + 10) / 3;
- C. Return Number (num + 10) / 3;
- D. Return Number (num + 10) / 3;
Answer: A
NEW QUESTION 86
Refer to the code below:
What is the value of result when the code executes?
- A. 5-5
- B. 10-10
- C. 10-5
- D. 5-10
Answer: B
NEW QUESTION 87
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. Primitive values are mutable.
- B. Non-primitive values are immutable.
- C. Primitive values are immutable.
- D. Non-primitive values are mutable.
Answer: C
NEW QUESTION 88
Refer to the following array:
Let arr1 = [ 1, 2, 3, 4, 5 ];
Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?
- A. Let arr2 = arr1;
- B. Let arr2 = arr1.sort();
- C. Let arr2 = arr1.slice(0, 5);
- D. Let arr2 = Array.from(arr1);
Answer: C,D
NEW QUESTION 89
Given the code below:
const copy = JSON.stringify([ new String(' false '), new Bollean( false ), undefined ]);
What is the value of copy?
- A. -- [ \"false\" ,false, null ]--
- B. -- [ \"false\" , false, undefined ]--
- C. -- [ \"false\" , { } ]--
- D. -- [ false, { } ]--
Answer: A
NEW QUESTION 90
Refer to the code below:
Let searchString = ' Look for this ';
Which two options remove the whitespace from the beginning of searchString? Choose 2 answers
- A. searchString. trimEnd ( ) ;
- B. searchString. Replace (/^\a\a'/' ' ') ;
- C. trimStart (searchString) ;
- D. searchString. trimstart ( ) ;
Answer: B,D
NEW QUESTION 91
Given the following code:
Let x =null;
console.log(typeof x);
What is the output of the line 02?
- A. "Object"
- B. "undefined"
- C. "Null"
- D. "X"
Answer: A
NEW QUESTION 92
A developer has an ErrorMandler module that contains multiple functions.
What kind of export should be leveraged so that multiple function can be used?
- A. All
- B. default
- C. Named
- D. Multi
Answer: C
NEW QUESTION 93
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?
- A. "newUserName"
- B. undefined
- C. "Username available"
- D. "Msg is not defined"
Answer: B
NEW QUESTION 94
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. 02431
- B. 01234
- C. 0
- D. 02413
Answer: A
NEW QUESTION 95
A developer wants to leverage a module to print a price in pretty format, and has imported a method as shown below:
Import printPrice from '/path/PrincePrettyPrint. Js';
Based on the code, what must be true about the printPrice function of the PricePrettyPrint modules for this import to work?
- A. printPrice must be a multi export
- B. printPrice must be an default export
- C. printPrice must be an all export
- D. printPrice must be named export
Answer: D
NEW QUESTION 96
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