JavaScript/JavaScript MCQ Questions And Answers Sample Test,Sample questions

Question:
 A ________ object is a reference to one of the classes in a Java package, such as netscape.javascript .

1.JavaArray

2.JavaClass

3.JavaObject

4.JavaPackage

Posted Date:-2021-02-20 06:15:56


Question:
 In JavaScript, _________ is an object of the target language data type that encloses an object of the source language.

1.a wrapper

2.a link

3.a cursor

4.a form

Posted Date:-2021-02-20 06:15:56


Question:
 JavaScript is interpreted by ________

1.Client

2.Server

3.Object

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
 The syntax of a blur method in a button object is ______________

1.Blur()

2.Blur(contrast)

3.Blur(value)

4.Blur(depth)

Posted Date:-2021-02-20 06:15:56


Question:
 The syntax of capture events method for document object is ______________

1.captureEvents()

2. captureEvents(args eventType)

3.captureEvents(eventType)

4.captureEvents(eventVal)

Posted Date:-2021-02-20 06:15:56


Question:
 The _______ method of an Array object adds and/or removes elements from an array.

1.Reverse

2.Shift

3.Slice

4.Splice

Posted Date:-2021-02-20 06:15:56


Question:
 To open a dialog box each time an error occurs, which of the following is added to prefs.js?

1.user_pref("javascript.classic.error_alerts", true);

2.user_pref("javascript.classic.error_alerts ", false);

3.user_pref("javascript.console.open_on_error ", true);

4.user_pref("javascript.console.open_on_error ", false);

Posted Date:-2021-02-20 06:15:56


Question:
 To set up the window to capture all Click events, we use which of the following statement?

1.window.captureEvents(Event.CLICK);

2.window.handleEvents (Event.CLICK);

3. window.routeEvents(Event.CLICK );

4.window.raiseEvents(Event.CLICK );

Posted Date:-2021-02-20 06:15:56


Question:
 Which of the following attribute can hold the JavaScript version?

1.LANGUAGE

2.SCRIPT

3.VERSION

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
 Which of the following best describes JavaScript?

1. a low-level programming language.

2.a scripting language precompiled in the browser.

3.. a compiled scripting language.

4. an object-oriented scripting language.

Posted Date:-2021-02-20 06:15:56


Question:
 Which of the following is the structure of an if statement?

1. if (conditional expression is true) thenexecute this codeend if

2. if (conditional expression is true)execute this codeend if

3.if (conditional expression is true) {then execute this code>->}

4.if (conditional expression is true) then {execute this code}

Posted Date:-2021-02-20 06:15:56


Question:
 Which of the following navigator object properties is the same in both Netscape and IE?

1.navigator.appCodeName

2.navigator.appName

3.navigator.appVersion

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
 Which types of image maps can be used with JavaScript?

1.Server-side image maps

2.Client-side image maps

3.Server-side image maps and Client-side image maps

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
Choose the client-side JavaScript object?

1.Database

2.Cursor

3.Client

4.FileUpLoad

Posted Date:-2021-02-20 06:15:56


Question:
Choose the server-side JavaScript object?

1.FileUpLoad

2.Function

3.File

4.Date

Posted Date:-2021-02-20 06:15:56


Question:
How does JavaScript store dates in a date object?

1.The number of milliseconds since January 1st, 1970

2.The number of days since January 1st, 1900

3.The number of seconds since Netscape's public stock offering.

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
How to create a Date object in JavaScript?

1.dateObjectName = new Date([parameters])

2.dateObjectName.new Date([parameters])

3.dateObjectName := new Date([parameters])

4. dateObjectName Date([parameters])

Posted Date:-2021-02-20 06:15:56


Question:
If para1 is the DOM object for a paragraph, what is the correct syntax to change the text within the paragraph?

1.New Text?

2.para1.value="New Text";

3.para1.firstChild.nodeValue= "New Text";

4.para1.nodeValue="New Text";

Posted Date:-2021-02-20 06:15:56


Question:
Inside which HTML element do we put the JavaScript?

1.<js>

2.<scripting>

3.<script>

4.<javascript>

Posted Date:-2021-02-20 06:15:56


Question:
Why so JavaScript and Java have similar name?

1.JavaScript is a stripped-down version of Java

2. JavaScript's syntax is loosely based on Java's

3.They both originated on the island of Java

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
JavaScript entities start with _______ and end with _________.

1.Semicolon, colon

2.Semicolon, Ampersand

3.Ampersand, colon

4.Ampersand, semicolon

Posted Date:-2021-02-20 06:15:56


Question:
The JavaScript exception is available to the Java code as an instance of __________

1.netscape.javascript.JSObject

2.netscape.javascript.JSException

3.netscape.plugin.JSException

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
The syntax of close method for document object is _____________

1.Close(doC.

2.Close(object)

3.Close(val)

4.Close()

Posted Date:-2021-02-20 06:15:56


Question:
The syntax of Eval is _______________

1.[objectName.]eval(numeriC.

2.[objectName.]eval(string)

3.[EvalName.]eval(string)

4.[EvalName.]eval(numeriC.

Posted Date:-2021-02-20 06:15:56


Question:
To automatically open the console when a JavaScript error occurs which of the following is added to prefs.js?

1.user_pref(" javascript.console.open_on_error", false);

2.user_pref("javascript.console.open_error ", true);

3.user_pref("javascript.console.open_error ", false);

4.user_pref("javascript.console.open_on_error", true);

Posted Date:-2021-02-20 06:15:56


Question:
To enable data tainting, the end user sets the _________ environment variable.

1.ENABLE_TAINT

2.MS_ENABLE_TAINT

3.NS_ENABLE_TAINT

4.ENABLE_TAINT_NS

Posted Date:-2021-02-20 06:15:56


Question:
Using _______ statement is how you test for a specific condition.

1.Select

2.If

3.Switch

4.For

Posted Date:-2021-02-20 06:15:56


Question:
What are variables used for in JavaScript Programs?

1.Storing numbers, dates, or other values

2.Varying randomly

3.Causing high-school algebra flashbacks

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
What does the <noscript> tag do?

1.Enclose text to be displayed by non-JavaScript browsers.

2.Prevents scripts on the page from executing.

3.Describes certain low-budget movies.

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
What is the correct JavaScript syntax to write "Hello World"?

1.System.out.println("Hello World")

2. println ("Hello World")

3.document.write("Hello World")

4. response.write("Hello World")

Posted Date:-2021-02-20 06:15:56


Question:
What is the correct syntax for referring to an external script called " abc.js"?

1.<script href=" abc.js">

2. <script name=" abc.js">

3.<script src=" abc.js">

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
What should appear at the very end of your JavaScript?
The <script LANGUAGE="JavaScript">tag

1.The </script>

2.The <script>

3.The END statement

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
When a JavaScript object is sent to Java, the runtime engine creates a Java wrapper of type ___________

1.ScriptObject

2.JSObject

3.JavaObject

4.Jobject

Posted Date:-2021-02-20 06:15:56


Question:
When a user views a page containing a JavaScript program, which machine actually executes the script?

1.The User's machine running a Web browser

2.The Web server

3.A central machine deep within Netscape's corporate offices

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
Which is the correct way to write a JavaScript array?

1.var txt = new Array(1:"tim",2:"kim",3:"jim")

2.var txt = new Array:1=("tim")2=("kim")3=("jim")

3.var txt = new Array("tim","kim","jim")

4.var txt = new Array="tim","kim","jim"

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following are capabilities of functions in JavaScript?

1.Return a value

2.Accept parameters and Return a value

3.Accept parameters

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following can't be done with client-side JavaScript?

1.Validating a form

2. Sending a form's contents by email

3. Storing the form's contents to a database file on the server

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following event fires when the form element loses the focus: <button>, <input>, <label>, <select>, <textarea>?

1.onfocus

2.onblur

3.onclick

4.ondblclick

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following is not a valid JavaScript variable name?

1.2names

2._first_and_last_names

3.FirstAndLast

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following is not considered a JavaScript operator?

1.New Text?

2.this

3.delete

4.typeof

Posted Date:-2021-02-20 06:15:56


Question:
Which of the following way can be used to indicate the LANGUAGE attribute?

1.<LANGUAGE="JavaScriptVersion">

2. <SCRIPT LANGUAGE="JavaScriptVersion">

3.<SCRIPT LANGUAGE="JavaScriptVersion"> JavaScript statements…</SCRIPT>

4. <SCRIPT LANGUAGE="JavaScriptVersion"!> JavaScript statements…</SCRIPT>

Posted Date:-2021-02-20 06:15:56


Question:
Which tag(s) can handle mouse events in Netscape?

1.<IMG>

2.<A>

3.<BR>

4.None of the above

Posted Date:-2021-02-20 06:15:56


Question:
__ JavaScript statements embedded in an HTML page can respond to user events such as mouse-clicks, form input, and page navigation.

1.Client-side

2.Server-side

3.Local

4.Native

Posted Date:-2021-02-20 06:15:56


Question:
_____ class provides an interface for invoking JavaScript methods and examining JavaScript properties.

1.ScriptObject

2.JSObject

3.JavaObject

4.Jobject

Posted Date:-2021-02-20 06:15:56


Question:
_____ JavaScript is also called client-side JavaScript.

1.Microsoft

2.Navigator

3.LiveWire

4.Native

Posted Date:-2021-02-20 06:15:56


Question:
_____ tag is an extension to HTML that can enclose any number of JavaScript statements.

1.<SCRIPT>

2.<BODY>

3.<HEAD>

4.<TITLE>

Posted Date:-2021-02-20 06:15:56


Question:
_____method evaluates a string of JavaScript code in the context of the specified object.

1.Eval

2.ParseInt

3.ParseFloat

4.Efloat

Posted Date:-2021-02-20 06:15:56


Question:
_______ is a wrapped Java array, accessed from within JavaScript code.

1.JavaArray

2.JavaClass

3.JavaObject

4.JavaPackage

Posted Date:-2021-02-20 06:15:56


Question:
_______ JavaScript is also called server-side JavaScript.

1.Microsoft

2.Navigator

3.LiveWire

4.Native

Posted Date:-2021-02-20 06:15:56


Question:
___________ is the tainted property of a window object.

1.Pathname

2.Protocol

3.Defaultstatus

4.Host

Posted Date:-2021-02-20 06:15:56


More MCQS

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  2. JavaScript MCQ Questions And Answers Set 2
  3. JavaScript MCQ Set 1
  4. JavaScript MCQ Set 2
  5. Javascript MCQ Questions Set 1
  6. Javascript Multiple Choice Questions
  7. JAVASCRIPT MCQ
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