Writing first JavaScript program - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print 'Hello, world!' to the console.

Javascript

console.[1]('Hello, world!');

Drag options to blanks, or click blank then click option'

Awrite

Bshow

Cprint

Dlog

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'print' instead of 'log' causes an error because 'print' is not a console method.

Using 'write' or 'show' are not valid console methods.

In JavaScript, console.log() is used to print messages to the console.

2fill in blank

medium

Complete the code to declare a variable named greeting with the value 'Hello'.

Javascript

let [1] = 'Hello';

Drag options to blanks, or click blank then click option'

Agreeting

Bmessage

Ctext

Dhello

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than 'greeting' does not meet the task requirement.

The variable name should be greeting as specified.

3fill in blank

hard

Fix the error in the code to correctly display the sum of 5 and 3.

Javascript

console.log(5 [1] 3);

Drag options to blanks, or click blank then click option'

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-' subtracts numbers instead of adding.

Using '*' or '/' performs multiplication or division, not addition.

The plus sign + adds two numbers together in JavaScript.

4fill in blank

hard

Fill both blanks to create a function named greet that prints 'Hi!' when called.

Javascript

function [1]() {
  console.[2]('Hi!');
}

Drag options to blanks, or click blank then click option'

Agreet

Bhello

Clog

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'hello' as function name instead of 'greet'.

Using 'print' instead of 'log' causes an error.

The function name should be greet and console.log prints the message.

5fill in blank

hard

Fill both blanks to create an arrow function named sayHello that returns 'Hello!'.

Javascript

const [1] = () => {
  [2] 'Hello!';
};

Drag options to blanks, or click blank then click option'

AsayHello

Breturn

Dconsole.log

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'console.log' instead of 'return' does not return the value.

Adding extra characters after the string causes syntax errors.

The arrow function is named sayHello, uses return to send back the string, and no extra symbols after the string.