Q.Which statement accesses HTML classes?

• getElementById
• class.name
• getElementsByClassName

Q.By modifying the DOM, the contents on the page also gets modified

• False
• True

Q.Using HTML button tag, JavaScript command can be executed by using ____ function

• "alert('Button");"
• "alert('Button1');
• "alert(Button1);"

Q.Document object is part of ____ object

• Window
• Tree
• System

Q.For any structured document, _____ defines a standard set of objects

• Core DOM
• XML DOM
• HTML DOM

Q.Which is the most preferred way of handling events?

• Register a listener to an element
• Referencing an element with the event and assign a function as a value
• Writing the JavaScript as an attribute to an element

Q.How many 'onload' events can be written in a page

• Many
• 1
• 2
• None

Q.The data from the AJAX request is usually in XML. True or False?

• True
• False

Q.AJAX requests can support data transfer in ______ format

• XML
• None of the options
• Any
• JSON

Q._____ object is used to make calls and request data from server

• GET
• XML
• XMLHttpRequest

Q.You want to create an alert. Select the correct one

• alert("goodbye');
• alert('goodbye");
• alert('he said "goodbye" ');

Q.What is the output for the following function test(x) { while(x < 5) { x++; } return x; } alert(test(2));

• 5
• 3
• 6
• 2

Q.var i = 1; if (function f(){}) { i += typeof f; } x;

• 1undefined
• Error
• 1NaN
• 1

Q.____ is used to exit a loop early.

• Break
• Alert
• Exit
• Continue

Q.What is the output for the following code (function f(){ function f(){ return 1; } return f(); function f(){ return 2; } })();

• Error
• 2
• 1
• NaN

Q.Anonymous functions can be created in JavaScript. What do anonymous function do?

• Process a variable before passing it on to another function
• Automatically define the scope of a value inside a parameter
• Overwrite variables that are to be kept updated

Q.Your div element in a document has id="answers". If a JS fn sets d=document.getElementById("answers"), then which is the preferred way to add a paragraph containing the word "Hello" as a child of that div?

• answers.innerHTML = "Hello";
• d.innerHTML = "Hello ";
• d.appendChild("Hello ");
• p = createElement("p"); p.innerHTML = "Hello"; d.appendChild(p);

Q.Multiple variables can be created and initialized in a single JavaScript statement

• True
• False

Q.Which is the correct way to create an array in JavaScript? I) var myProg = []; II) var myArray = ["C","Java","C++","Python"]; III) var myProg = new Array();

• I, II
• II & III
• I, II & III
• I, III

Q.Code A: var x = 10; y = --x + 1; alert(y); Code B: var x = 10; y = x-- + 1; alert(y); What is the output for code A and B?

• 10,10
• 11,10
• 10,11
• 11,11

Q.What option would you specify when inserting code in a web page? script type="____"

• JavaScript/text
• text/language
• text/JavaScript