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The hide() function hides an element by __
setting the vertical attribute of that element to “-100px” off the visible screen.
setting the horizontal attribute of that element to “-100px” off the visible screen.
setting “visibility” inline style attribute of that element to “hidden”.
setting “display” inline style attribute of that element to “none”.
Answer with explanation
Answer: Option DExplanation
The correct answer is setting the “display” inline style attribute of that element to “none”.
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Which of the following jQuery method returns true if the specified class is present on at least one of the set of matched elements?
hasClass( class )
hasStyleClass( class )
hasCSSClass( class )
None of the above
Answer with explanation
Answer: Option CExplanation
The correct answer is hasClass( class )
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$.extend(false, object0, object1, object2); What does the code above do?
The statement is invalid because its arguments are invalid
Extends object2 by merging object0 and object1 with object2.
Extends the object1 by merging object0 and object2 with object1
Extends the object0 by merging object1 and object2 with object0
Answer with explanation
Answer: Option DExplanation
The correct answer is Extends the object0 by merging object1 and object2 with object0
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If you hide the selected element in jquery which jquery method did you have to choose from below?
visible(false) Method
hide() Method
hidden(element) Method
display(none) Method
Answer with explanation
Answer: Option BExplanation
The correct answer is hide() Method
The hide() method is used to hide the selective elements in the query. Hence the options hide() method.
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If the content of two or more objects is merged into the first object then which below method is used?
jQuery obj() Method
jQuery extend() Method
jQuery check() Method
None of the above
Answer with explanation
Answer: Option AExplanation
The correct answer is jQuery obj() Method
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Which of the following is the correct syntax to set the background color of all h1 elements to Green in jQuery?
$(“h1”).css(“background-color”,”Green”);
$(“h1”).style(“background-color”,”Green”);
$(“h1”).layout(“background-color”,”Green”);
$(“h1”).html(“background-color”,”Green”);
Answer with explanation
Answer: Option AExplanation
The correct answer is $(“h1”).css(“background-color”,”Green”);
In jQuery, using the css() method, we can set the style of an HTML element. The correct syntax for setting the background color to yellow of an h1 element is-$(“h1”).css(“background-color”,”Green”);
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Which jQuery method is used to deal with name conflicts?
nameConflict()
noConflict()
Conflict()
None of the above
Answer with explanation
Answer: Option BExplanation
The correct answer is noConflict()
noConflict() method is used with a custom alias name ‘jq’. This code will also give you the proper output. jQuery uses the noConflict() method to avoid the conflict of using $ variable with other JavaScript variables.
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jQuery is a ________ library.
VBScript
Script
JavaScript library
Java
Answer with explanation
Answer: Option CExplanation
jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. It is free, open-source software using the permissive MIT License. As of May 2019, jQuery is used by 73% of the 10 million most popular websites.
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Which of the following jQuery method loads a remote page using an HTTP request?
serializeArray( )
serialize( )
jQuery.ajaxSetup( options )
jQuery.ajax( options )
Answer with explanation
Answer: Option DExplanation
The jQuery.ajax( options ) method loads a remote page using an HTTP request
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Which of the following jQuery method gets a set of elements containing all of the unique siblings of each of the matched set of elements?
siblings( selector )
prevAll( selector)
parents( selector )
None of the above.
Answer with explanation
Answer: Option AExplanation
The correct answer is siblings( selector )
The siblings( [selector] ) method gets a set of elements containing all of the unique siblings of each of the matched set of elements
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Which of the following jQuery selector selects elements with the given element tag-name?
$(‘.tag-name’)
$(‘#tag-name’)
$(‘tag-name’)
None of the above
Answer with explanation
Answer: Option CExplanation
The correct answer is $(‘tag-name’) selects all element of type tag-name in the document. For example, $(‘p’) selects all paragraphs <p> in the document
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Which of the following type of variable is visible only within a function where it is defined?
local variable
global variable
Both of the above.
None of the above.
Answer with explanation
Answer: Option AExplanation
The correct answer is local variable
Local Variables: A local variable will be visible only within a function where it is defined. Function parameters are always local to that function
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Which sign does jQuery use as a shortcut for jQuery?
the $ sign
the % sign
the? Sign
None of the above
Answer with explanation
Answer: Option AExplanation
The standard shortcut for the jQuery function provided by the jQuery library is $ For instance: $(‘p’). CSS(‘color’, ‘red’); It Would select every paragraph on the page, and change its font color to red. This line is exactly the same as jQuery(‘p’).
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