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Test Status
JSJQUERYRANDOMTEST
Ques 1 :
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 2 :
Which of the following function of Boolean object returns a string of either 'true' or 'false' depending upon the value of the object?
(A) toSource()
(B) toString()
(C) valueOf()
(D) None of the above.
Ques 3 :
What is the difference between .width() and .outerWidth()?
(A) The methods are basically the same. The only difference is that .width() returns a number, whereas outerWidth() a string.
(B) width() returns the computed width of the element, while outerWidth() returns the width plus all the margins and paddings.
(C) No difference. width() is a shorthand alias for outerWidth()
Ques 4 :
function first() {
window.a = 3;
}
function second() {
alert(a);
}
Assuming I call these functions in order, what's alerted?
(A) 0
(B) 3
(C) null
(D) undefined
Ques 5 :
What is the output of the following code snippet?
eval(20*4)=?
(A) NaN
(B) 204
(C) 24
(D) 80
Ques 6 :
The __ operator determines whether an object is an instance of another object.
(A) typeof
(B) void
(C) delete
(D) instanceof
Ques 7 :
Which of the following JQuery selector select elements whose css class is some-class?
(A) $('some-class')
(B) $('#some-class')
(C) $('.some-class')
(D) None of the above.
Ques 8 :
What does pop() method of the array do?
(A) removes the first element
(B) removes the last element
(C) adds the element to the array at the first position
(D) adds the element to the array at the last position
Ques 9 :
The __ value is returned when you use an object property that does not exist, or a variable that has been declared, but has never had a value assigned to it.
(A) null
(B) undefined
(C) NaN
(D) None of the above
Ques 10 :
The ______ Method acts as explicit iterator.
(A) .hover()
(B) .all()
(C) .toggle()
(D) .each()
Ques 11 :
Which of the following way can be used to indicate the LANGUAGE attribute?
(A) <SCRIPT LANGUAGE="JavaScriptVersion">
(B) <SCRIPT LANGUAGE="JavaScriptVersion">
(C) <SCRIPT LANGUAGE="JavaScriptVersion">JavaScript statements</SCRIPT>
(D) <SCRIPT LANGUAGE="JavaScriptVersion"!> JavaScript statements</SCRIPT>
Ques 12 :
Which of the following is a JavaScript datatype?
(A) Null
(B) Object
(C) Undefined
(D) All of above
Ques 13 :
You can test whether the browser supports specific features using...
(A) $.support
(B) $.browser
(C) $.featureTest
(D) $.browserTest
Ques 14 :
Which statement best explains what "unobtrusive JavaScript" is?
(A) JavaScript that doesn't annoy users
(B) JavaScript that is separate from HTML
(C) JavaScript that does not affect a web page
(D) JavaScript that works even with scripting turned off
Ques 15 :
How to test the pattern for the given text?
var text = "testing: 1, 2, 3";
var pattern = /\d+/g;
(A) text==pattern
(B) text.equals(pattern)
(C) text.test(pattern)
(D) pattern.test(text)
Ques 16 :
What are variables used for in JavaScript Programs?
(A) Storing numbers, dates, or other values
(B) Varying randomly
(C) Causing high-school algebra flashbacks
(D) None of the above
Ques 17 :
How to create a Date object in JavaScript?
(A) dateObjectName = new Date([parameters])
(B) dateObjectName.new Date([parameters])
(C) dateObjectName := new Date([parameters])
(D) dateObjectName Date([parameters])
Ques 18 :
JQuery is the programming language
(A) Yes
(B) No
Ques 19 :
Which popup box you use to verify something from user?
(A) alert("Write some text here")
(B) confirm("Write some text here")
(C) prompt("Write here some text","Write default value here")
Ques 20 :
To enable data tainting, the end user sets the _________ environment variable.
(A) ENABLE_TAINT
(B) MS_ENABLE_TAINT
(C) NS_ENABLE_TAINT
(D) ENABLE_TAINT_NS
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