JavaScript Questions

1. What will be the result or type of error if p is not defined in the following JavaScript code snippet?

console.log(p)

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

3.  Which of the following can be implemented using animation?

4. in javascript “===” operator defines what?

5. What is the main difference between var and let keywords in JavaScript?

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

7. Which of the following methods is used to access HTML elements using Javascript?

8. Which object in Javascript doesn’t have a prototype?

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

var cars = ["Honda","Hyundai","Mahindra"];
 
 var result = cars.shift();
 
 document.writeln("Result: ", cars);

10. Arrays in JavaScript are defined by which of the following statements?

11. Which one of the following is correct output for the following given JavaScript code if there is a p tag with id=demo ?
functionourFunction()
{
document.getElementById(“demo”).innerHTML=Math.abs(-7.25);
}

12. Which JavaScript method is used to write into an alert box?

13. Which of the following is the language of javascript?

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

15. Arrays in JavaScript are defined by which of the following statements?