What is the primary purpose of JavaScript in web development?
Anonymous Quiz
14%
Styling web pages
77%
Adding interactivity to web pages
9%
Managing databases
👍3
❤1🔥1
What does the typeof operator return for null?
Anonymous Quiz
14%
"object"
54%
"null"
32%
"undefined"
❤2👍1
Which method is used to convert a JSON string into an object?
Anonymous Quiz
35%
JSON.stringify()
39%
JSON.parse()
26%
JSON.convert()
👍2
Which built-in JavaScript method removes the last element of an array?
Anonymous Quiz
64%
pop()
20%
shift()
16%
splice()
👍2👏1
❤1🔥1
How does JavaScript handle asynchronous operations?
Anonymous Quiz
18%
By using threads
38%
By waiting for each operation to complete before moving on
44%
With callbacks, promises, and async/await
❤1🔥1
What does the reduce() method do?
Anonymous Quiz
41%
Reduces the size of an array
30%
Filters an array based on conditions
29%
Accumulates array values into a single result
❤1👍1🔥1
What happens if you declare the same variable twice with let in the same scope?
Anonymous Quiz
30%
It throws an error
30%
The second declaration is ignored
40%
It overrides the first declaration
❤2🔥1👏1
What quiz would you like to see this week?🤔
Anonymous Poll
34%
Java
21%
Python
20%
HTML + CSS
10%
SQL
3%
General IT
10%
AI + Machine Learning
3%
Other (Leave Comment)
❤2🔥1
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👍7❤3🤯3🔥2
Which of the following is NOT a valid access modifier in Java?
Anonymous Quiz
17%
private
19%
protected
64%
global
👍4🔥1
👍2
Which of the following is the correct way to declare a constant variable in Java?
Anonymous Quiz
36%
constant int x = 10;
44%
final int x = 10;
20%
int final x = 10;
🔥2❤1
What is the purpose of the volatile keyword in Java?
Anonymous Quiz
44%
To prevent the JVM from optimizing the variable during runtime
43%
To ensure that updates to a variable are visible across all threads
13%
To guarantee atomicity of operations on the variable
👍1🔥1