JavaScript Mock Test 2

1. Which was one of the first security subsets proposed?

2. Which variables are used internally in object methods and are also globally visible?

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

var arr = [7, 5, 9, 1];  
var min = Math.min.apply(null, arr);  
document.writeln(min);  

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?

var emp=new Object();  
emp.name="Ravi Malik";  
emp.salary=50000;  
document.write("emp.name+" "+emp.salary);

6. The Crockford's subset does not include which function in JavaScript?

7. What can be done in order to avoid the creation of global variables in JavaScript?

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

function info()
{  
    let a=1;
    let b=2;
    return a*b;  
}  
document.write(info());

9. The provides() function and the exportsobject are used to _________

10. If you have a function f and an object o, you can define a method named m of o with ________