JS Practice

JS Practice

12th Grade

17 Qs

quiz-placeholder

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JS Practice

JS Practice

Assessment

Quiz

Computers

12th Grade

Medium

Created by

Nixon López

Used 6+ times

FREE Resource

17 questions

Show all answers

1.

REORDER QUESTION

1 min • 2 pts

You are a creating a web page with a script.

The script will insert the window's location inside the page's input element.

Sort the elements bellow according to the order in the script:

.href

window.location

value =

       document.

getElementById('url').

Answer explanation

This code creates a web page with an input field that displays the URL of the current page when loaded in a web browser.

2.

REORDER QUESTION

1 min • 2 pts

A JavaScript array is initialized as follows: 

var array=[20,40,60,80];

 

You write the following code to manipulate the array:  

array.shift(); 

array.pop(); 

array.push(10); 

array.unshift(100);

Sort the final result of the array by dragging the elements:

100

10

60

40

3.

LABELLING QUESTION

1 min • 2 pts

You need to write a loop that will traverse the length of an array to find the value orange. If an array element value is null, the code should immediately go to the next element. When the value is found, the loop should exit. 

How should you complete the code?

Drag the elements to the correct position according to the statement.

b
a
e

do

continue

while

break

for

4.

DROPDOWN QUESTION

1 min • 2 pts

Evaluate the following code. Line numbers are included for reference only.

 

var n = 50;

var c = n + 5;

var a = n % 2;

var d = c / 11;

n = d * 2;

console.log (n, c, a, d);
​ ​ ​ (a)  

What is the console result of the variables n,c,a,d?

Choose the correct option.

10, 55, 0, 5
10, 5, 55, 0
0, 10, 55, 5

5.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

totalscore is in the correct format according to standard naming conventions for JavaScript

Yes

No

6.

LABELLING QUESTION

1 min • 2 pts

You are designing a web page that contains a blue button. When the button is pressed, it should call a function that displays the message "Welcome!".

When the cursor hovers over the button, the button should turn red. When the cursor leaves the button, the button should revert back to its original color of blue.

You want to complete the markup using the appropriate HTML events.

How should you complete the markup?

To answer, select the appropriate event in the answer area.

b
d
c

onmouseover

onkeydown

onmousedown

onmouseout

onclick

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Form POST requests will always remain in the browser history.

Yes

No

Answer explanation

POST requests do not appear in the browser history as a unique URL, since the submitted data is not in the URL but in the body of the request. However, the page to which the form is submitted may appear in the browser history.

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