JavaScript MCQ SINGLE CORRECT Question Bank
Multiple Choice Single Correct Answer
Sr No
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Multiple Choice Single Correct Answer
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Correct Answer
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1
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______ tag is used to insert JavaScript in HTML coding.
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<script>
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<script>
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<head>
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<JavaScript>
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<JS>
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2
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Client Side scripts require _______ to execute the coding.
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Web browser
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Web browser
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Web server
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PWS
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IIS
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3
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BOM stands for ________.
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Browser Object Model
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Browser Object Model
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Browser Object Modelling
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Built Object Modelling
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Built object Models
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4
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DOM stands for _______.
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Document Object Model
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Document Object Model
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Document Object Modelling
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Different Object Modules
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Different Option Media
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5
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_______ returns the code name of the browser.
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appCodeName
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appCodeName
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appNameCode
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appName
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appNamebrowser
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6
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_____ method displays a dialog box that prompts the visitor for input.
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prompt()
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display()
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print()
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visit()
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prompt()
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7
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When a script is executed by client browser is known as _______ side scripting.
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Client
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Client
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Server
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Left
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Right
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8
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When a script is activated by client and is run on server it is known as ____ side scripting
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Server
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Server
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Client
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Top
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Center
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9
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VBScript is an example of _________ side scripting.
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Client
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Client
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Left
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Server
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Middle
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10
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_____ Scripts are used generally for validation purpose.
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Client
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Response
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Client
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Request
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Server
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11
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Server side scripts require ________ to execute the coding.
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Web server
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Client
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Web server
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Web browser
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Hyperlink
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12
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Objects are initialised using the _________ operator.
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new
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new
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open
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create
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initialise
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13
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JavaScript supports ______ types of objects.
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Two
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Two
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Three
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Four
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Five
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14
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______ returns the name of the browser.
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appName
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appCodeName
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appName
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appVersion
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appNameCode
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15
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______ returns the version information of the browser.
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appVersion
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appVersion
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appver
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appversionName
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appVersionCode
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16
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______ keyword denotes the current object in JavaScript.
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this
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this
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that
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new
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class
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17
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______ keyword is used to initialise the object.
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new
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this
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new
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class
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delete
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18
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_____ property of window object returns the location object for the window.
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Location
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Location
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URL
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Place
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Home
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19
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_____ property of window returns the name of a window
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Name
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namewindow
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windowname
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name
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Title
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20
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_____ property of window object sets the text in the status bar of a window.
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Status bar
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status bar
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status location
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status
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URL
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21
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_____ property returns a Boolean Value indicating whether a window has been clsoed or not
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closed
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closed
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exit
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return
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break
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22
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____ method displays an dialog box with a message and an OK button
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alert()
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alert()
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alertok()
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ok()
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cancel()
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23
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_____ method removes focus from the current window.
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blur()
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close()
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blur()
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focus()
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prompt()
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24
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_____ method closes the current window.
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close()
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close()
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exit()
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break()
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return()
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25
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_____ method displays a dialog box with an ok and a cancel button.
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confirm()
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confirm()
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display()
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alert()
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cancel()
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26
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_____ method calls a function or evaluates an expression after a specified number of milliseconds.
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setTimeout()
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setTimeout()
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setTimein()
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timeout()
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timein()
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27
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_____ executes a code some time in the future
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setTimeout()
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setTimeout()
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setTimein()
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timeout()
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ti
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28
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_____ method cancels the setTimeout().
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clearTimeout()
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clearTimeout()
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setTimeout()
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resetTimeout()
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setTimein()
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29
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_____ property of string object returns the character at a specified position.
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charAt(index)
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charAt(index)
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characterAt(index)
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charIn(Index)
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charto(Index)
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30
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Following event occurs when the user clicks on an element.
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onclick
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onClick
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onmousedown
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click
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onmouseover
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31
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Following event occurs when the user presses a mouse button over an element
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onmousedown
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onmousedown
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onmouseover
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onmouseout
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onmouseup
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32
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Following event occurs when the pointer is moved onto an element.
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onmouseover
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onmousedown
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onmouseout
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onmouover
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onmouseup
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33
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Following event occurs when the user releases a mouse button over an element
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onmouseup
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onmousedown
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onmouseover
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onmouseout
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onmouseup
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34
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Following event occurs when an event occurs when the user moves pointer out of an element.
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onmouseout
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onmousedown
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onmouseup
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onmouseover
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onmouseout
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35
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Following event occurs when the user is pressing a key.
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onkeypress
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onkeydown
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onkeypress
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onkeyup
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keypress
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36
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Following event occurs when the user releases a key.
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onkeyup
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onkeydown
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onkeypress
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onkeyup
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onkeyover
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37
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Following event occurs when an image is stopped from loading before completely loaded.
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onabort
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onabort
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onerror
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onexit
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onstop
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38
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Following event occurs when an image does not load properly(<body> and <frameset>)
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onerror
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onabort
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onerror
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oncancel
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onunload
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39
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Following event occurs when a document frameset has been loaded.
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onload
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onload
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onunload
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overload
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overunload
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40
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Following event occurs once a page has unloaded used with <body> and <frameset>.
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onunload
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ofunload
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onabort
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onunload
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oncancel
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41
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Following event occurs when a form element loses focus
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onblur
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onblur
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onchange
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onfocus
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onreset
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42
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Following event occurs when the content of a form element, the selection or the checked state have changed(for<input>, <select> and <textarea>)
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onchange
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onblur
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onchange
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onreplace
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onmodified
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43
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Followng event occurs when a form is cancelled
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onreset
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onblur
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onreset
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oncancel
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onselect
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44
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Following event occurs when a user selects some text (for<input) and <text area>.
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onselect
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ontext
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onselect
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onhighlight
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toselect
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45
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Following event occurs when a form is submitted.
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onsubmit
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onsubmit
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onsave
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onsend
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onclick
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46
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_______ method of string object returns the position of the last found occurrence of given character in a string.
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lastindexof()
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indexof()
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lastindexof()
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indexat()
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lastindexat()
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