1. In JavaScript, what is a block of statement?

2. What will be the output of the following JavaScript code?

  let cars = ['Honda', 'Hyundai'];
    cars.push('Mahindra');
    document.write(typeof cars + " " + cars); 

3. The “function” and ” var” are known as:

4. What will be the output of the following JavaScript code?

const prototype1 = {};  
const object1 = Object.create(prototype1);  
console.log(Object.getPrototypeOf(object1) === prototype1);

5. What will be the output of the following JavaScript code?

let x = "10";
    let y = + x;
    
    document.write(typeof y);

6. What is the use of the noscript tag in Javascript?

7.  Where is Client-side JavaScript code is embedded within HTML documents?

8. What will be the output of the following code snippet?

var a = 1;  
var b = 0;  
while (a <= 3)  
{  
   a++;  
   b += a * 2;  
   print(b);
}

9. What will be the output of the following code snippet?

var a = "Scaler";
var result = a.substring(2, 4);
document.write(result);

10.  If A is the superclass and B is the subclass, then subclass inheriting the superclass can be represented as _________

11. Which collection object allows unique value to be inserted only once?

12. Which is the correct syntax to call an external JavaScript file in the current HTML document?

13. What will be the output of the following JavaScript code?

const arr = [10, 20, 30];
 let result = 0;
 
 arr.forEach(myFunction);
 
 document.write("Result: " , result)
 function myFunction(value, index, array) {
   result += value; 
 }

14. Which of the following is not considered as an error in javascript?

15.  What will be the function of the following JavaScript program?

var scope = "js scope";
function checkscope() 
{
    var scope = "javascript scope"; 
    function f() 
    { 
         return scope; 
    }
    return f;
}