Which is a JavaScript running in the background, without affecting the performance of the page.

Suppose, you begin reading a book on page h and end on page k. If you read each page completely and the pages are numbered and read consecutively, then how many page shave you read?

A

h+k

B

h-k

C

k-h+2

D

k-h-1

Why should you specify a background color if you are using an image for the actual background of your page ?

A

So the text shows up better

B

In case the image doesn’t fit right

C

The background color will be shown until the image loads

D

None of the above

Which is the function in JavaScript that will print the current page in JavaScript?

A

print()

B

printcurrent()

C

print(now)

D

print(this)

Page-4 ও Page-5 কে Page-2 এর সাথে যুক্ত করলে- i. ওয়েবসাইটের কাঠামো পরিবর্তীত হবে ii. নতুন করে HTML কোড লিখতে হবে iii. মেমোরি স্পেস কম লাগবে নিচের কোনটি সঠিক?

A

i ও ii

B

i ও iii

C

ii ও iii

D

i, ii ও iii

Which of the following API can be used to get the timing without affecting the page loading process?

A

Navigation API

B

Timing API

C

Navigation Timing API

D

Navigate API

In which format does JavaScript support external JavaScript?

A

.js

B

.php

C

.js/php

D

.jss

Which class provides an interface for invoking JavaScript methods and examining JavaScript properties?

A

ScriptObject

B

JSObject

C

JavaObject

D

Jobject

Where can a JavaScript code be placed in an html page?

A

both a and b

B

none of the above

What will be done if more than one page requires a file of JavaScript code?

A

Downloads that many times

B

Retrives from the browser cache

C

Must be re executed

D

Must be included in all the pages

How do you focus a particular part of the HTML page in JavaScript?

A

hover()

B

focus()

C

on()

D

focuson()

Which is a JavaScript running in the background, without affecting the performance of the page.

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