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Test Status
JSJQUERYRANDOMTEST
Ques 1 :
What is the output of the following code snippet?
eval(20*4)=?
(A) NaN
(B) 204
(C) 24
(D) 80
Ques 2 :
The ________ method acts on JQuery objects and translate the match DOM element into query string that can be pass along with AJAX request.
(A) .serialize()
(B) .serializeAll()
(C) .synchronized()
(D) none of these
Ques 3 :
Look at the following selector: $("div p"). What does it select?
(A) All div elements with a p element
(B) All p elements inside a div element
(C) The first p element inside a div element
Ques 4 :
Which of the following can't be done with client-side JavaScript?
(A) Validating a form
(B) Sending a form's contents by email
(C) Storing the form's contents to a database file on the server
(D) None of the above
Ques 5 :
What is the correct JavaScript syntax to write "Hello World"?
(A) System.out.println("Hello World")
(B) println ("Hello World")
(C) document.write("Hello World")
(D) response.write("Hello World")
Ques 6 :
_______is use for alternately expand and collapse a page element
(A) .hover()
(B) stopPropagation()
(C) .toggle()
(D) .trigger()
Ques 7 :
With JQuery, look at the following selector: $("div.intro"). What does it select?
(A) The first div element with class="intro"
(B) The first div element with id="intro"
(C) All div elements with id="intro"
(D) All div elements with class="intro"
Ques 8 :
Which JQuery function is used to prevent code from running, before the document is finished loading?
(A) $(document).load()
(B) $(body).onload()
(C) $(document).ready()
Ques 9 :
What is the correct JQuery code for making all div elements 100 pixels high?
(A) $("div").height="100"
(B) $("div").height(100)
(C) $("div").yPos(100)
Ques 10 :
__ returns true if a variable is an array, if not false.
(A) Array.isArray()
(B) Array.of()
(C) Array.from()
(D) Array.observe()
Ques 11 :
What is the correct syntax for Array Declaration.
(A) var city = new Array("delhi","agra","akot","aligarh");
(B) var city = ["delhi", "agra", "akot", "aligarh"];
(C) Both a and b
(D) None of them
Ques 12 :
What is mean by "this" keyword in javascript?
(A) It refers current object
(B) It referes previous object
(C) It is variable which contains value
(D) None of the above
Ques 13 :
.css(â??widthâ??) and .width() are the two ways to change the width of _________.
(A) selector
(B) element
(C) fade effect
(D) radio button
Ques 14 :
The ________ method works for accepting an array of DOM elements and pushes them into a stack.
(A) push()
(B) pop()
(C) pushStack()
(D) popStack()
Ques 15 :
function() {
var a = 10;
if(a > 5) {
a = 7;
}
alert(a);
}
When executed, what value will be alerted to the screen?
(A) 10
(B) 7
(C) null
(D) undefined
Ques 16 :
What is the use of "this" keyword in javascript?
(A) It refers to current object
(B) It refers to previous object
(C) It is a variable which contains value
(D) None of the above
Ques 17 :
Which operator creates a new object from the specified object type?
(A) obj
(B) new
(C) create
(D) None of the above
Ques 18 :
How to determine whether a function exists by using the typeof operator?
var square = function(number1, number2) { return number1 + number2 };
(A) typeof square == 'function'
(B) typeof square == 'object'
Ques 19 :
Which of the following is the correct syntax to create a cookie using JavaScript?
(A) document.cookie = 'key1 = value1; key2 = value2; expires = date';
(B) browser.cookie = 'key1 = value1; key2 = value2; expires = date';
(C) window.cookie = 'key1 = value1; key2 = value2; expires = date';
(D) navigator.cookie = 'key1 = value1; key2 = value2; expires = date';
Ques 20 :
What is the output of this code typeof null
(A) Number
(B) String
(C) Object
(D) NaN
Submit Answer
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