Comments

Part of the Fundamentals section of Coddy's GDScript journey. Lesson 3 of 92.

Comments are notes you write inside your code. GDScript ignores them: they are there to help people read the code.

A comment starts with #. Everything after # on that line is ignored:

# This is a comment
print("Hello!")

A comment can also follow code on the same line:

print("Hello!") # This prints Hello!

GDScript has no special syntax for multi-line comments. Start each line with #:

# This program greets the player.
# It runs once, at the start.
print("Welcome!")

A comment can also disable a line of code without deleting it:

# print("This line does NOT run")
print("This line runs")

An indented block cannot be empty. If you comment out every line under func _ready():, add pass, a statement that does nothing, so the block still has a line to run.

Challenge

Beginner

The program prints two lines. Turn the line that prints Goodbye! into a comment, so the program prints only:

Hello!

Do not delete the line: put # in front of it.

Try it yourself

extends Node

func _ready():
	print("Hello!")
	print("Goodbye!")

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Fundamentals

1Introduction

The Language Hello World!CommentsBasic Program Structure

4Operators Part 1

Arithmetic Operators Integer Division Modulo Operator Arithmetic Shortcuts Recap - Simple Math Comparison Operators

7Basic IO

Output Output With Variables String Formatting Input Cast Recap - Till 120 Recap - True or False

10Functions

Declare a Function Arguments Return Return Types Recap - Sigma Function Recap - Validation Function Default Values

13Iterating Over Arrays

Iterating Over Elements Iterating With Indexes Iterating Over Strings Part 1 Iterating Over Strings Part 2

16Daily Expense Tracker

Project Overview Exit The Program

2Variables Part 1

Numbers String Boolean Empty Variables Naming Conventions

5Operators Part 2

Logical Operators Part 1 Logical Operators Part 2 Recap - Simple Logic Logical Operators Part 3 Ternary Operator

8Bill Split Calculator

Welcome Message Getting Input

Calculating The Tip And Total

Splitting The Bill

Formatted Output

11FizzBuzz with a Twist

Game Overview The FizzBuzz Function

Looping The Numbers

Adding The Twist

14Arrays Advanced

Array Slicing Sequence Operators Membership Sort And Reverse

17Final Challenges

Flat Asterisk Pyramid Pattern Finder What To Buy

Practice on your own: Online GDScript compiler