Learn Codehs - 10 Code Examples & CST Typing Practice Test

CodeHS is an online learning platform that teaches computer science and programming through interactive lessons, coding exercises, and projects. It supports multiple programming languages and provides a classroom management system for educators.

View all 10 Codehs code examples →

Hello World in CodeHS (Karel the Dog, JavaScript-based)Hello World in CodeHS (Python)CodeHS Karel Move Example CodeHS Python Variables Example CodeHS Karel Turn Example CodeHS Python If Statement CodeHS Karel Put Beeper CodeHS Python Loop Example CodeHS Karel Pick Beeper CodeHS Python Function Example

Learn CODEHS with Real Code Examples

Updated Nov 26, 2025

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Code Sample Descriptions

Hello World in CodeHS (Karel the Dog, JavaScript-based)

function start() {
    say("Hello World");
}

A simple CodeHS program where Karel the Dog writes 'Hello World' using a say command.

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Hello World in CodeHS (Python)

print("Hello World")

A Python-based CodeHS example printing 'Hello World'.

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CodeHS Karel Move Example

function start() {
    move();
    move();
    move();
}

Karel moves forward 3 steps.

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CodeHS Python Variables Example

x = 5
name = "Alice"
print(x)
print(name)

Declares variables and prints them.

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CodeHS Karel Turn Example

function start() {
    turnLeft();
    turnLeft();
    move();
}

Karel turns left 2 times and moves forward.

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CodeHS Python If Statement

num = 7
if num > 0:
    print("Positive")
else:
    print("Non-positive")

Checks if a number is positive.

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CodeHS Karel Put Beeper

function start() {
    putBeeper();
    move();
    putBeeper();
    move();
    putBeeper();
}

Karel places 3 beepers in a line.

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CodeHS Python Loop Example

for i in range(1, 6):
    print(i)

Print numbers from 1 to 5 using a loop.

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CodeHS Karel Pick Beeper

function start() {
    pickBeeper();
    move();
    pickBeeper();
}

Karel picks up 2 beepers in sequence.

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CodeHS Python Function Example

def add(a, b):
    return a + b

print(add(3, 4))

Defines a function to add two numbers and prints result.

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Frequently Asked Questions about Codehs

What is Codehs?

What are the primary use cases for Codehs?

Teaching programming fundamentals in schools. Providing interactive coding exercises. Assigning projects and tracking student progress. Learning computer science concepts online. Supplementing classroom instruction with online tools

What are the strengths of Codehs?

Easy to set up and use for students and educators. Interactive exercises encourage active learning. Supports both beginner and intermediate learners. Tracks student performance and progress. Offers a structured curriculum for CS education

What are the limitations of Codehs?

Limited use outside of educational settings. Advanced programming features may be restricted. Requires an internet connection. Not designed for professional software development. Some features require paid educator accounts

How can I practice Codehs typing speed?

CodeSpeedTest offers 10+ real Codehs code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Code Sample Descriptions

Hello World in CodeHS (Karel the Dog, JavaScript-based)

function start() {
    say("Hello World");
}

A simple CodeHS program where Karel the Dog writes 'Hello World' using a say command.

Let’s Try →

Hello World in CodeHS (Python)

print("Hello World")

A Python-based CodeHS example printing 'Hello World'.

Let’s Try →

CodeHS Karel Move Example

function start() {
    move();
    move();
    move();
}

Karel moves forward 3 steps.

Let’s Try →

CodeHS Python Variables Example

x = 5
name = "Alice"
print(x)
print(name)

Declares variables and prints them.

Let’s Try →

CodeHS Karel Turn Example

function start() {
    turnLeft();
    turnLeft();
    move();
}

Karel turns left 2 times and moves forward.

Let’s Try →

CodeHS Python If Statement

num = 7
if num > 0:
    print("Positive")
else:
    print("Non-positive")

Checks if a number is positive.

Let’s Try →

CodeHS Karel Put Beeper

function start() {
    putBeeper();
    move();
    putBeeper();
    move();
    putBeeper();
}

Karel places 3 beepers in a line.

Let’s Try →

CodeHS Python Loop Example

for i in range(1, 6):
    print(i)

Print numbers from 1 to 5 using a loop.

Let’s Try →

CodeHS Karel Pick Beeper

function start() {
    pickBeeper();
    move();
    pickBeeper();
}

Karel picks up 2 beepers in sequence.

Let’s Try →

CodeHS Python Function Example

def add(a, b):
    return a + b

print(add(3, 4))

Defines a function to add two numbers and prints result.

Let’s Try →

Frequently Asked Questions about Codehs

What is Codehs?

What are the primary use cases for Codehs?

What are the strengths of Codehs?

What are the limitations of Codehs?

How can I practice Codehs typing speed?

CodeSpeedTest offers 10+ real Codehs code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.