O Level Online Test

JavaScript must always be placed inside the <head> tag

JavaScript can be placed either in the <head> or <body> tag

JavaScript can only be placed in external files

JavaScript cannot be placed in the <head> tag

onkeypress

onkeydown

onkeyup

All of the above

innerHTML

outerHTML

textContent

value

onmove

onscroll

onchange

onresize

Display()

Prompt()

Alert()

Confirm()

onsize

onresize

onzoom

onexpand

keyword

function

Declaration Statement

Data type

variable carName;

var carName;

vari carName;

dim carName;

System.out.println("Hello Word")

println ("Hello Word")

document.write("Hello Word")

response.write("Hello Word")

onchange

onsubmit

oninput

onreset

Automatic synchronization of data between model and view components

Automatic synchronization of data between model and controller components

Technique to save HTML data in the database

Technique to bind database data to HTML control

{{ }}

[[ ]]

(( ))

<< >>

oncontextmenu

onmousedown

onrightclick

onselect

element.getChildren()

element.childNodes

element.getElementsByTagName()

element.getChildNodes()

element.innerHTML

element.value

element.content

element.innerText

classList.add()

classList.remove()

classList.toggle()

classList.replace()

var defines a variable while let defines a constant.

There is no such major difference between them

The value of variable declared with let cannot be changed

var define function scoped variable while let define block scoped variable

5myvalue

myvalue5

Myvalue

None of These

<script href="xxx.js">

<script src="xxx.js">

<script name="xxx.js">

<script id="xxx.js">

Multiple <script> tags can be used in the same HTML document

The <script> tag can only be placed in the <head> section

The <script> tag can only be used once in an HTML document

The <script> tag must always reference an external file

ng-model

ng-repeat

ng-bind

ng-if

element.addEventListener("click", function);

element.addEventHandler("click", function);

element.attach("click", function);

element.on("click", function);

44

12

6

Error

The with value let cannot of a variable declared with var can be changed while the value of a variable declared be changed

var defines a variable while let defines a constant

var declare function scoped variable while let declare block scoped variable

All of the options

shift()

pop()

remove()

delete()

onclick

onmouseover

onmousehover

onmouseclick

onkeypress

onkeydown

onkeyup

onkeyrelease

integers

double precision floating point

double

floating point

upload

load

onmouseout

onmouseover

<script src=" test.js"'></script>

<script href=" test.js"></script>

<import src=" test.js"></import>

<script link=" test.js"></script>

0

1

2

Error

Remove the element with the ID "myDiv" from the DOM

Remove all child elements inside the element with the ID "myDiv"

Hide the element with the ID "myDiv"

Move the element with the ID "myDiv" to a different location

Syntax error

Accessing a variable or function that is not defined

Division by zero

None of these

removeElement()

removeNode()

removeChild()

deleteNode()

element.background = "red";

element.style.backgroundColor = "red";

element.style.background = "red";

element.css.backgroundColor = "red";

Long

Text

Integer

Number

onprogress

onload

onerror

oncomplete

var defines a variable while let defines a constant.

There is no such major difference between them.

The value of a variable declared with var can be changed while the value of a variable declared with let cannot be changed.

var defined function scoped variable while let define block scoped variable.

::

?:

??

=>

10

20

100

Error

Boolean

String

Number

Function

document. write()

console.log()

innerHTML

document.getElementById()

ng-start

ng-controller

ng-app

ng-init

getElementByTagName()

getElementById()

getElementByClass()

querySelector()

==

=

===

!=

0

3

error

5

var

let

const

none of the above

2value

first-name

var

_totalAmount

round(7.25)

Math.rnd(7.25)

rnd(7.25)

Math.round(7.25)

alert("Hello World");

msgBox("Hello World");

alertBox("Hello World");

msg("Hello World");