javascript-mid
Quiz
•
Professional Development
•
KG
•
Medium
Muhanned Noman
Used 19+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What will be console logged into the terminal?
1
2
{number: 1}
3
2.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
What property tells you how many items are in an array?
count
sum
length
items
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
What will this code log?
3
undefined
1,2,3,4
arr
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which of the following code will return `undefined` using the following array?
const numbers = [3, 1];
numbers[0]
numbers[2-1]
numbers[3]
numbers[numbers.length -1]
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the output of the following code?
Undefined
function
number
ReferenceError: Barr is not defined
6.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
Given a number of elements that need to stay in order, would you use an Object or an Array?
Array
Object
7.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
All the elements in an array must be of the same type?
True
False
Yes
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