What is the purpose of the innerHTML property?

To get or set the HTML content of an element

What does document.querySelector(".className") do?

Returns the first element with the specified class

Returns all elements with the specified class

A for loop runs a block of code:

Until a specified condition is false

While a specified condition is true

The else statement is used:

To specify a block of code to be executed if the condition is false

To execute a block of code while a condition is true

What does continue do in a loop?

Skips the current iteration and moves to the next

The following is a valid conditional statement: if (x === 10) { console.log("x is 10"); }

Only if x is explicitly declared

Which of the following statements is true about form validation in JavaScript?

Client-side validation reduces server load.

JavaScript cannot perform client-side validation.

Validation is only possible on the server side.

Validation requires external libraries.

What will the following code validate? if (email.includes("@")) { console.log("Valid email"); } else { console.log("Invalid email"); }

That the email contains a "@" symbol

That the email field is not empty

The setTimeout() method:

Executes a function after a delay

Calls a function repeatedly after a specified time

Stops the execution of a function

What will the following code do? document.querySelector("button").addEventListener("click", () => { console.log("Button clicked!"); });

Log a message when the button is clicked

Log a message when the page loads

How do you autoplay a video in HTML?

Add the autoplay attribute to the <video> tag.

Use JavaScript to start the video.

Set the loop attribute in the <video> tag.

2ND DIAGNOSTIC TEST

Authored by Anawelyn Bacar

Computers

9th Grade

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51 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which tag is used to define the header of an HTML document?

<head>

<title>

<meta>

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

CSS stands for:

Common Style Sheet

Cascading Style Sheets

Creative Style Source

Custom Style System

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct way to apply an external CSS file in HTML?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which function is used to display a dialog box with a text input?

alert()

prompt()

document.write()

parseInt()

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does parseFloat("10.5") return?

10.5

10.50

"10.5"

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method writes directly to an HTML document?

prompt()

alert()

document.write()

console.log()

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of alert() in JavaScript?

To log data to the console

To display an alert box

To validate form data

To declare variables

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2ND DIAGNOSTIC TEST

Which tag is used to define the header of an HTML document?

CSS stands for:

Which of the following is the correct way to apply an external CSS file in HTML?

Which function is used to display a dialog box with a text input?

What does parseFloat("10.5") return?

Which method writes directly to an HTML document?

What is the purpose of alert() in JavaScript?

What is the output of parseInt("123abc")?

Which of the following is not a valid JavaScript element?

What does prompt() return if the user cancels?

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