A To Z Exams

Why JavaScript is called as Lightweight Programming Language ?

because JS is available free of cost.

because JS is client side scripting

because we can add programming functionality inside JS

because JS can provide programming functionality inside but up to certain extend.

JavaScript was invented at _______ Lab .

Netscape

Google Lab

AT&T Bell LAb

Sun Microsystem

JavaScript is invented by ________.

Brendan Eich

Helsinki, Linus

W3 Group

James Gosling

<script src="../main.js"></script>

This code will include External JS inside your webpage.

Yes

A hexadecimal literal begins with

Both 0x and 0X

The generalised syntax for a real number representation is

[digits][.digits][(E|e)[(+|-)]digits].

[digits][+digits][(E|e)[(+|-)]digits].

[digits][(E|e)[(+|-)]digits].

[.digits][digits][(E|e)[(+|-)]digits].

The main purpose of a “Live Wire” in NetScape is to

Create linkage between client side and server side

Permit server side, JavaScript code, to connect to RDBMS

Support only non relational database

To interpret JavaScript code

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

Client-side

Server-side

Local

Native

Which of the following attribute can hold the JavaScript version?

LANGUAGE

SCRIPT

VERSION

None of the above

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

System.out.println("Hello World")

println ("Hello World")

document.write("Hello World")

response.write("Hello World")

What does the tag do?

Enclose text to be displayed by non-JavaScript browsers.

Prevents scripts on the page from executing.

Describes certain low-budget movies.

None of the above

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

"New Text"?

para1.value="New Text";

para1.firstChild.nodeValue= "New Text";

para1.nodeValue="New Text";

JavaScript is interpreted by _________

Client

Server

Object

None of the above

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

None of the above

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

a wrapper

a link

a cursor

a form

_______ class provides an interface for invoking JavaScript methods and examining JavaScript properties.

ScriptObject

JSObject

JavaObject

Jobject

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

JavaArray

JavaClass

JavaObject

JavaPackage

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

netscape.javascript.JSObject

netscape.javascript.JSException

netscape.plugin.JSException

None of the above

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

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

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

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

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

Which best explains getSelection()?

Returns the VALUE of a selected OPTION.

Returns document.URL of the window in focus.

Returns the value of cursor-selected text

Returns the VALUE of a checked radio input.

Note:

Click the 'Submit Test' button given in the bottom of this page to Submit your answers.
Test will be submitted automatically if the time expired.
Don't refresh the page.

Java Script Test

Test Instructions :

1. The Test is 1hr duration.

2. The Test Paper consists of 30 questions. The maximum marks are 30.

3. All the questions are multiple choice question type with three options for each question.

4. Out of the three options given for each question, only one option is the correct answer.

5. Each question is allotted 1 mark for each correct response.

6. 0.25 will be deducted for incorrect response of each question.

Time Left : 00 : 30 : 00