javascript-vlits

__________ is a JavaScript library that implements the most common user interface elements and interactions like sliders, accordions, tabs, and so on.

• A. JavaScript

• B. JQuery UI

• C. VTS

• D. JCL

Choose the correct JavaScript syntax to change the content of the following HTML code.

<p id="geek">GeeksforGeeks</p>

• A) document.getElement(“geek”).innerHTML=”I am a Geek”;

• B) document.getElementById(“geek”).innerHTML=”I am a Geek”;

• C) document.getId(“geek”)=”I am a Geek”;

• D) document.getElementById(“geek”).innerHTML=I am a Geek;

Which of the following is the correct syntax to display “GeeksforGeeks” in an alert box using JavaScript?

• A. alertbox(“GeeksforGeeks”);

• B. msg(“GeeksforGeeks”);

• C. msgbox(“GeeksforGeeks”);

• D. alert(“GeeksforGeeks”);

What is the correct syntax for referring to an external script called “geek.js”?

• A. <script src=”geek.js”>

• B. <script href=”geek.js”>

• C. <script ref=”geek.js”>

• D. <script name=”geek.js”>

Predict the output of the following JavaScript code.

<script type="text/javascript">

a = 8 + "8";

document.write(a);

</script>

• A) 16

• B) Complilation Error

• C) 88

• D) Run Time Error

Predict the output of the following JavaScript code.

<script type="text/javascript">

var a="GeeksforGeeks";

var x=a.lastIndexOf("G");

document.write(x);

</script>

• A) 8

• B) 0

• C) 9

• D) Error

Which of the following is not a reserved word in JavaScript?

• A. interface

• B. throws

• C. program

• D. short

Predict the output of the following JavaScript code.

<script type="text/javascript" language="javascript">

var a = "GeeksforGeeks";

var result = a.substring(4, 5);

document.write(result);

</script>

• A. sf

• B. ks

• C. s

• D. k

Predict the output of the following JavaScript code.

<script type="text/javascript" language="javascript">

var x=5;

var y=6;

var res=eval("x*y");

document.write(res);

</script>

• A. “30”

• B. 30

• C. 5*6

• D. “5*6”

Which of the following is a disadvantage of using JavaScript?

• A - Client-side JavaScript does not allow the reading or writing of files.

• B - JavaScript can not be used for Networking applications because there is no such support available.

• C - JavaScript doesn't have any multithreading or multiprocess capabilities.

• D - All of the above.