Learn Coldfusion - 10 Code Examples & CST Typing Practice Test

ColdFusion (CFML) is a web application development platform and scripting language designed for rapid development of dynamic websites, web applications, and APIs. It emphasizes ease of use, database integration, and rapid deployment.

View all 10 Coldfusion code examples →

ColdFusion Counter and Theme Toggle ColdFusion Fibonacci Sequence ColdFusion Factorial Calculator ColdFusion Prime Checker ColdFusion Sum of Array ColdFusion Reverse String ColdFusion Multiplication Table ColdFusion Temperature Converter ColdFusion Simple Alarm Simulation ColdFusion Random Walk Simulation

Learn COLDFUSION with Real Code Examples

Updated Nov 20, 2025

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Code Sample Descriptions

ColdFusion Counter and Theme Toggle

<cfset count = 0>
<cfset isDark = false>

<cfscript>
function updateUI() {
    writeOutput('Counter: ' & count & '<br>');
    writeOutput('Theme: ' & iif(isDark, 'Dark', 'Light') & '<br>');
}

function increment() {
    count += 1;
    updateUI();
}

function decrement() {
    count -= 1;
    updateUI();
}

function reset() {
    count = 0;
    updateUI();
}

function toggleTheme() {
    isDark = not isDark;
    updateUI();
}

// Simulate actions
updateUI();
increment();
increment();
toggleTheme();
decrement();
reset();
</cfscript>

Demonstrates a simple counter with theme toggling using ColdFusion variables and output tags.

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ColdFusion Fibonacci Sequence

<cfscript>
a = 0;
b = 1;
writeOutput(a & '<br>');
writeOutput(b & '<br>');
for(i=1; i <= 8; i++) {
    c = a + b;
    writeOutput(c & '<br>');
    a = b;
    b = c;
}
</cfscript>

Generates first 10 Fibonacci numbers.

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ColdFusion Factorial Calculator

<cfscript>
n = 5;
f = 1;
for(i=1; i <= n; i++) {
    f *= i;
}
writeOutput(f);
</cfscript>

Calculates factorial of a number.

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ColdFusion Prime Checker

<cfscript>
n = 13;
isPrime = true;
for(i=2; i < n; i++) {
    if(n mod i == 0) {
        isPrime = false;
        break;
    }
}
writeOutput(iif(isPrime, 'Prime', 'Not Prime'));
</cfscript>

Checks if a number is prime.

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ColdFusion Sum of Array

<cfscript>
arr = [1,2,3,4,5];
sum = 0;
for(i=1; i <= arrayLen(arr); i++) {
    sum += arr[i];
}
writeOutput(sum);
</cfscript>

Calculates the sum of an array of numbers.

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ColdFusion Reverse String

<cfscript>
s = 'HELLO';
r = '';
for(i=len(s); i >= 1; i--) {
    r &= mid(s,i,1);
}
writeOutput(r);
</cfscript>

Reverses a string.

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ColdFusion Multiplication Table

<cfscript>
n = 5;
for(i=1; i <= 10; i++) {
    writeOutput(n & ' x ' & i & ' = ' & (n*i) & '<br>');
}
</cfscript>

Prints multiplication table of a number.

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ColdFusion Temperature Converter

<cfscript>
c = 25;
f = (c * 9/5) + 32;
writeOutput(f);
</cfscript>

Converts Celsius to Fahrenheit.

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ColdFusion Simple Alarm Simulation

<cfscript>
temp = 80;
thresh = 75;
writeOutput(iif(temp > thresh, 'Alarm: Temperature Too High!', 'Temperature Normal'));
</cfscript>

Simulates an alarm when temperature exceeds a threshold.

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ColdFusion Random Walk Simulation

<cfscript>
steps = 10;
pos = 0;
for(i=1; i <= steps; i++) {
    if(rand() LT 0.5) {
        pos++;
    } else {
        pos--;
    }
    writeOutput(pos & '<br>');
}
</cfscript>

Simulates a 1D random walk.

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Frequently Asked Questions about Coldfusion

What is Coldfusion?

What are the primary use cases for Coldfusion?

Dynamic website development. Enterprise web applications. Database-driven applications. REST/SOAP APIs. Intranet portals and dashboards

What are the strengths of Coldfusion?

Quick development with minimal boilerplate. Excellent integration with relational databases. Cross-platform on JVM. Strong backward compatibility. Active maintenance by Adobe with CF updates

What are the limitations of Coldfusion?

Declining popularity compared to modern frameworks. Vendor lock-in with Adobe ColdFusion server. Performance may lag in large-scale high-concurrency apps. Limited open-source ecosystem compared to PHP or Node.js. Learning curve for modern CFML features if coming from other languages

How can I practice Coldfusion typing speed?

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

Learn Other Programming Languages

C React Python C++Rust TypeScript Kotlin PHP Java C#Ruby Mql Cql N1ql Cypher Gremlin Partiql Haskell Elixir Fsharp View all languages →

Learn Coldfusion - 10 Code Examples & CST Typing Practice Test

View all 10 Coldfusion code examples →

Learn COLDFUSION with Real Code Examples

Updated Nov 20, 2025

Introduction & Fundamentals Setup & Configuration Architecture & Deep Internals Performance & Security Development Workflow Learning & Career Growth Business & Strategy Examples

Code Sample Descriptions

ColdFusion Counter and Theme Toggle

<cfset count = 0>
<cfset isDark = false>

<cfscript>
function updateUI() {
    writeOutput('Counter: ' & count & '<br>');
    writeOutput('Theme: ' & iif(isDark, 'Dark', 'Light') & '<br>');
}

function increment() {
    count += 1;
    updateUI();
}

function decrement() {
    count -= 1;
    updateUI();
}

function reset() {
    count = 0;
    updateUI();
}

function toggleTheme() {
    isDark = not isDark;
    updateUI();
}

// Simulate actions
updateUI();
increment();
increment();
toggleTheme();
decrement();
reset();
</cfscript>

Demonstrates a simple counter with theme toggling using ColdFusion variables and output tags.

Let’s Try →

ColdFusion Fibonacci Sequence

<cfscript>
a = 0;
b = 1;
writeOutput(a & '<br>');
writeOutput(b & '<br>');
for(i=1; i <= 8; i++) {
    c = a + b;
    writeOutput(c & '<br>');
    a = b;
    b = c;
}
</cfscript>

Generates first 10 Fibonacci numbers.

Let’s Try →

ColdFusion Factorial Calculator

<cfscript>
n = 5;
f = 1;
for(i=1; i <= n; i++) {
    f *= i;
}
writeOutput(f);
</cfscript>

Calculates factorial of a number.

Let’s Try →

ColdFusion Prime Checker

<cfscript>
n = 13;
isPrime = true;
for(i=2; i < n; i++) {
    if(n mod i == 0) {
        isPrime = false;
        break;
    }
}
writeOutput(iif(isPrime, 'Prime', 'Not Prime'));
</cfscript>

Checks if a number is prime.

Let’s Try →

ColdFusion Sum of Array

<cfscript>
arr = [1,2,3,4,5];
sum = 0;
for(i=1; i <= arrayLen(arr); i++) {
    sum += arr[i];
}
writeOutput(sum);
</cfscript>

Calculates the sum of an array of numbers.

Let’s Try →

ColdFusion Reverse String

<cfscript>
s = 'HELLO';
r = '';
for(i=len(s); i >= 1; i--) {
    r &= mid(s,i,1);
}
writeOutput(r);
</cfscript>

Reverses a string.

Let’s Try →

ColdFusion Multiplication Table

<cfscript>
n = 5;
for(i=1; i <= 10; i++) {
    writeOutput(n & ' x ' & i & ' = ' & (n*i) & '<br>');
}
</cfscript>

Prints multiplication table of a number.

Let’s Try →

ColdFusion Temperature Converter

<cfscript>
c = 25;
f = (c * 9/5) + 32;
writeOutput(f);
</cfscript>

Converts Celsius to Fahrenheit.

Let’s Try →

ColdFusion Simple Alarm Simulation

<cfscript>
temp = 80;
thresh = 75;
writeOutput(iif(temp > thresh, 'Alarm: Temperature Too High!', 'Temperature Normal'));
</cfscript>

Simulates an alarm when temperature exceeds a threshold.

Let’s Try →

ColdFusion Random Walk Simulation

<cfscript>
steps = 10;
pos = 0;
for(i=1; i <= steps; i++) {
    if(rand() LT 0.5) {
        pos++;
    } else {
        pos--;
    }
    writeOutput(pos & '<br>');
}
</cfscript>

Simulates a 1D random walk.

Let’s Try →

Frequently Asked Questions about Coldfusion

What is Coldfusion?

What are the primary use cases for Coldfusion?

Dynamic website development. Enterprise web applications. Database-driven applications. REST/SOAP APIs. Intranet portals and dashboards

What are the strengths of Coldfusion?

Quick development with minimal boilerplate. Excellent integration with relational databases. Cross-platform on JVM. Strong backward compatibility. Active maintenance by Adobe with CF updates

What are the limitations of Coldfusion?

How can I practice Coldfusion typing speed?

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

Learn Other Programming Languages

C React Python C++Rust TypeScript Kotlin PHP Java C#Ruby Mql Cql N1ql Cypher Gremlin Partiql Haskell Elixir Fsharp View all languages →