Which of the following is an event emitter? 

What is the full form of DOM?

var container = [10,20,30,40,50,60,70];

var answer = container.slice(1);

document.writeln(answer);

What happens if the first argument of the open() function is omitted?

Which of the following can be used to iterate over the elements of an iterable object, like an array or string?

What will be the return value of the write() method when the Node.js stream cannot write the data immediately and has to buffer it internally?

Which of the following methods can be used to extract a part of a string?

Which of the following does JSON.stringify() not serialize?

Why is the this keyword not preferred in JavaScript?

Name the operator which tests to see if the prototype property of a constructor appears anywhere in the prototype chain of an object.