Learn Cordova - 9 Code Examples & CST Typing Practice Test

Apache Cordova is an open-source mobile development framework that enables developers to build cross-platform mobile applications using HTML, CSS, and JavaScript. It wraps web applications into native containers to run on multiple mobile platforms.

View all 9 Cordova code examples →

Cordova Simple Todo App Cordova Counter App Cordova Note App Cordova Color Changer App Cordova Simple Calculator Cordova Countdown Timer Cordova Random Quote App Cordova Stopwatch App Cordova Simple Login Form

Learn CORDOVA with Real Code Examples

Updated Nov 23, 2025

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Code Sample Descriptions

Cordova Simple Todo App

<!DOCTYPE html>
<html>
  <head>
    <title>Todo App</title>
    <script>
      let todos = [];
      function addTodo() {
        const input = document.getElementById('todoInput');
        if(input.value.trim()) {
          todos.push(input.value.trim());
          input.value = '';
          renderTodos();
        }
      }
      function renderTodos() {
        const list = document.getElementById('todoList');
        list.innerHTML = '';
        todos.forEach(todo => {
          const li = document.createElement('li');
          li.textContent = todo;
          list.appendChild(li);
        });
      }
    </script>
  </head>
  <body>
    <h1>Todo App</h1>
    <input type='text' id='todoInput' placeholder='New Todo'/>
    <button onclick='addTodo()'>Add</button>
    <ul id='todoList'></ul>
  </body>
</html>

Demonstrates a simple Cordova app with a Todo list, adding tasks, and displaying them using standard HTML and JavaScript.

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Cordova Counter App

<!DOCTYPE html>
<html>
  <head>
    <title>Counter App</title>
    <script>
      let count = 0;
      function updateCount() { document.getElementById('count').textContent = count; }
      function increment() { count++; updateCount(); }
      function decrement() { count--; updateCount(); }
      function reset() { count = 0; updateCount(); }
    </script>
  </head>
  <body>
    <h1>Counter: <span id='count'>0</span></h1>
    <button onclick='increment()'>+</button>
    <button onclick='decrement()'>-</button>
    <button onclick='reset()'>Reset</button>
  </body>
</html>

A simple counter app demonstrating increment, decrement, and reset functionality in a Cordova app.

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Cordova Note App

<!DOCTYPE html>
<html>
  <head>
    <title>Note App</title>
    <script>
      let notes = [];
      function addNote() {
        const input = document.getElementById('noteInput');
        if(input.value.trim()) { notes.push(input.value.trim()); input.value=''; renderNotes(); }
      }
      function renderNotes() {
        const list = document.getElementById('noteList'); list.innerHTML='';
        notes.forEach((note,i)=>{
          const li=document.createElement('li'); li.textContent=note;
          const btn=document.createElement('button'); btn.textContent='Delete'; btn.onclick=()=>{ notes.splice(i,1); renderNotes(); };
          li.appendChild(btn); list.appendChild(li);
        });
      }
    </script>
  </head>
  <body>
    <h1>Notes</h1>
    <input id='noteInput' placeholder='New Note'/>
    <button onclick='addNote()'>Add</button>
    <ul id='noteList'></ul>
  </body>
</html>

A simple notes app to add, delete, and display notes using HTML and JavaScript.

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Cordova Color Changer App

<!DOCTYPE html>
<html>
  <head>
    <title>Color Changer</title>
    <script>
      function changeColor(color) { document.body.style.background = color; }
    </script>
  </head>
  <body>
    <h1>Change Background Color</h1>
    <button onclick='changeColor("red")'>Red</button>
    <button onclick='changeColor("green")'>Green</button>
    <button onclick='changeColor("blue")'>Blue</button>
  </body>
</html>

Demonstrates changing the background color using buttons in a Cordova app.

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Cordova Simple Calculator

<!DOCTYPE html>
<html>
  <head>
    <title>Calculator</title>
    <script>
      let display = '';
      function press(num) { display += num; document.getElementById('result').value = display; }
      function calculate() { try { display = eval(display); document.getElementById('result').value = display; } catch(e){ alert('Error'); } }
      function clearDisplay() { display=''; document.getElementById('result').value=''; }
    </script>
  </head>
  <body>
    <h1>Calculator</h1>
    <input id='result' readonly/><br/>
    <button onclick='press("1")'>1</button>
    <button onclick='press("2")'>2</button>
    <button onclick='press("+")'>+</button>
    <button onclick='calculate()'>=</button>
    <button onclick='clearDisplay()'>C</button>
  </body>
</html>

A basic calculator performing addition, subtraction, multiplication, and division.

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Cordova Countdown Timer

<!DOCTYPE html>
<html>
  <head>
    <title>Countdown Timer</title>
    <script>
      let time = 10;
      let interval;
      function startTimer() { clearInterval(interval); interval=setInterval(()=>{ if(time>0){ time--; document.getElementById('timer').textContent=time; } else { clearInterval(interval); } },1000); }
      function pauseTimer() { clearInterval(interval); }
      function resetTimer() { clearInterval(interval); time=10; document.getElementById('timer').textContent=time; }
    </script>
  </head>
  <body>
    <h1>Countdown: <span id='timer'>10</span></h1>
    <button onclick='startTimer()'>Start</button>
    <button onclick='pauseTimer()'>Pause</button>
    <button onclick='resetTimer()'>Reset</button>
  </body>
</html>

A simple countdown timer with start, pause, and reset functionality.

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Cordova Random Quote App

<!DOCTYPE html>
<html>
  <head>
    <title>Random Quotes</title>
    <script>
      const quotes = ['Quote 1','Quote 2','Quote 3'];
      function showQuote() { const idx=Math.floor(Math.random()*quotes.length); document.getElementById('quote').textContent=quotes[idx]; }
    </script>
  </head>
  <body>
    <h1>Random Quote</h1>
    <p id='quote'></p>
    <button onclick='showQuote()'>Show Quote</button>
  </body>
</html>

Displays a random quote from an array when a button is clicked.

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Cordova Stopwatch App

<!DOCTYPE html>
<html>
  <head>
    <title>Stopwatch</title>
    <script>
      let sec=0, interval;
      function start() { clearInterval(interval); interval=setInterval(()=>{ sec++; document.getElementById('time').textContent=sec; },1000); }
      function stop() { clearInterval(interval); }
      function reset() { clearInterval(interval); sec=0; document.getElementById('time').textContent=sec; }
    </script>
  </head>
  <body>
    <h1>Stopwatch: <span id='time'>0</span></h1>
    <button onclick='start()'>Start</button>
    <button onclick='stop()'>Stop</button>
    <button onclick='reset()'>Reset</button>
  </body>
</html>

A simple stopwatch with start, stop, and reset functionality.

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Cordova Simple Login Form

<!DOCTYPE html>
<html>
  <head>
    <title>Login Form</title>
    <script>
      function login() {
        const user=document.getElementById('username').value;
        const pass=document.getElementById('password').value;
        alert('Username: '+user+' Password: '+pass);
      }
    </script>
  </head>
  <body>
    <h1>Login</h1>
    <input id='username' placeholder='Username'/><br/>
    <input id='password' type='password' placeholder='Password'/><br/>
    <button onclick='login()'>Login</button>
  </body>
</html>

Demonstrates a simple login form with username and password fields.

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Frequently Asked Questions about Cordova

What is Cordova?

What are the primary use cases for Cordova?

Hybrid mobile apps for iOS, Android, and Windows. Enterprise apps needing rapid deployment across platforms. Prototyping mobile apps quickly using web technologies. Apps requiring native device functionality via plugins. Web-to-mobile porting of existing web applications

What are the strengths of Cordova?

Enables web developers to build mobile apps. Supports multiple platforms with one codebase. Large plugin ecosystem for hardware access. Active open-source community. Rapid prototyping and deployment

What are the limitations of Cordova?

Performance can lag compared to native apps for graphics-heavy tasks. Dependent on WebView rendering on each platform. Complex plugins may require native code adjustments. Limited offline capabilities without proper caching. Not ideal for games or highly interactive UI apps

How can I practice Cordova typing speed?

CodeSpeedTest offers 9+ real Cordova 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

Cordova Simple Todo App

<!DOCTYPE html>
<html>
  <head>
    <title>Todo App</title>
    <script>
      let todos = [];
      function addTodo() {
        const input = document.getElementById('todoInput');
        if(input.value.trim()) {
          todos.push(input.value.trim());
          input.value = '';
          renderTodos();
        }
      }
      function renderTodos() {
        const list = document.getElementById('todoList');
        list.innerHTML = '';
        todos.forEach(todo => {
          const li = document.createElement('li');
          li.textContent = todo;
          list.appendChild(li);
        });
      }
    </script>
  </head>
  <body>
    <h1>Todo App</h1>
    <input type='text' id='todoInput' placeholder='New Todo'/>
    <button onclick='addTodo()'>Add</button>
    <ul id='todoList'></ul>
  </body>
</html>

Demonstrates a simple Cordova app with a Todo list, adding tasks, and displaying them using standard HTML and JavaScript.

Let’s Try →

Cordova Counter App

<!DOCTYPE html>
<html>
  <head>
    <title>Counter App</title>
    <script>
      let count = 0;
      function updateCount() { document.getElementById('count').textContent = count; }
      function increment() { count++; updateCount(); }
      function decrement() { count--; updateCount(); }
      function reset() { count = 0; updateCount(); }
    </script>
  </head>
  <body>
    <h1>Counter: <span id='count'>0</span></h1>
    <button onclick='increment()'>+</button>
    <button onclick='decrement()'>-</button>
    <button onclick='reset()'>Reset</button>
  </body>
</html>

A simple counter app demonstrating increment, decrement, and reset functionality in a Cordova app.

Let’s Try →

Cordova Note App

<!DOCTYPE html>
<html>
  <head>
    <title>Note App</title>
    <script>
      let notes = [];
      function addNote() {
        const input = document.getElementById('noteInput');
        if(input.value.trim()) { notes.push(input.value.trim()); input.value=''; renderNotes(); }
      }
      function renderNotes() {
        const list = document.getElementById('noteList'); list.innerHTML='';
        notes.forEach((note,i)=>{
          const li=document.createElement('li'); li.textContent=note;
          const btn=document.createElement('button'); btn.textContent='Delete'; btn.onclick=()=>{ notes.splice(i,1); renderNotes(); };
          li.appendChild(btn); list.appendChild(li);
        });
      }
    </script>
  </head>
  <body>
    <h1>Notes</h1>
    <input id='noteInput' placeholder='New Note'/>
    <button onclick='addNote()'>Add</button>
    <ul id='noteList'></ul>
  </body>
</html>

A simple notes app to add, delete, and display notes using HTML and JavaScript.

Let’s Try →

Cordova Color Changer App

<!DOCTYPE html>
<html>
  <head>
    <title>Color Changer</title>
    <script>
      function changeColor(color) { document.body.style.background = color; }
    </script>
  </head>
  <body>
    <h1>Change Background Color</h1>
    <button onclick='changeColor("red")'>Red</button>
    <button onclick='changeColor("green")'>Green</button>
    <button onclick='changeColor("blue")'>Blue</button>
  </body>
</html>

Demonstrates changing the background color using buttons in a Cordova app.

Let’s Try →

Cordova Simple Calculator

<!DOCTYPE html>
<html>
  <head>
    <title>Calculator</title>
    <script>
      let display = '';
      function press(num) { display += num; document.getElementById('result').value = display; }
      function calculate() { try { display = eval(display); document.getElementById('result').value = display; } catch(e){ alert('Error'); } }
      function clearDisplay() { display=''; document.getElementById('result').value=''; }
    </script>
  </head>
  <body>
    <h1>Calculator</h1>
    <input id='result' readonly/><br/>
    <button onclick='press("1")'>1</button>
    <button onclick='press("2")'>2</button>
    <button onclick='press("+")'>+</button>
    <button onclick='calculate()'>=</button>
    <button onclick='clearDisplay()'>C</button>
  </body>
</html>

A basic calculator performing addition, subtraction, multiplication, and division.

Let’s Try →

Cordova Countdown Timer

<!DOCTYPE html>
<html>
  <head>
    <title>Countdown Timer</title>
    <script>
      let time = 10;
      let interval;
      function startTimer() { clearInterval(interval); interval=setInterval(()=>{ if(time>0){ time--; document.getElementById('timer').textContent=time; } else { clearInterval(interval); } },1000); }
      function pauseTimer() { clearInterval(interval); }
      function resetTimer() { clearInterval(interval); time=10; document.getElementById('timer').textContent=time; }
    </script>
  </head>
  <body>
    <h1>Countdown: <span id='timer'>10</span></h1>
    <button onclick='startTimer()'>Start</button>
    <button onclick='pauseTimer()'>Pause</button>
    <button onclick='resetTimer()'>Reset</button>
  </body>
</html>

A simple countdown timer with start, pause, and reset functionality.

Let’s Try →

Cordova Random Quote App

<!DOCTYPE html>
<html>
  <head>
    <title>Random Quotes</title>
    <script>
      const quotes = ['Quote 1','Quote 2','Quote 3'];
      function showQuote() { const idx=Math.floor(Math.random()*quotes.length); document.getElementById('quote').textContent=quotes[idx]; }
    </script>
  </head>
  <body>
    <h1>Random Quote</h1>
    <p id='quote'></p>
    <button onclick='showQuote()'>Show Quote</button>
  </body>
</html>

Displays a random quote from an array when a button is clicked.

Let’s Try →

Cordova Stopwatch App

<!DOCTYPE html>
<html>
  <head>
    <title>Stopwatch</title>
    <script>
      let sec=0, interval;
      function start() { clearInterval(interval); interval=setInterval(()=>{ sec++; document.getElementById('time').textContent=sec; },1000); }
      function stop() { clearInterval(interval); }
      function reset() { clearInterval(interval); sec=0; document.getElementById('time').textContent=sec; }
    </script>
  </head>
  <body>
    <h1>Stopwatch: <span id='time'>0</span></h1>
    <button onclick='start()'>Start</button>
    <button onclick='stop()'>Stop</button>
    <button onclick='reset()'>Reset</button>
  </body>
</html>

A simple stopwatch with start, stop, and reset functionality.

Let’s Try →

Cordova Simple Login Form

<!DOCTYPE html>
<html>
  <head>
    <title>Login Form</title>
    <script>
      function login() {
        const user=document.getElementById('username').value;
        const pass=document.getElementById('password').value;
        alert('Username: '+user+' Password: '+pass);
      }
    </script>
  </head>
  <body>
    <h1>Login</h1>
    <input id='username' placeholder='Username'/><br/>
    <input id='password' type='password' placeholder='Password'/><br/>
    <button onclick='login()'>Login</button>
  </body>
</html>

Demonstrates a simple login form with username and password fields.

Let’s Try →

Frequently Asked Questions about Cordova

What is Cordova?

What are the primary use cases for Cordova?

What are the strengths of Cordova?

Enables web developers to build mobile apps. Supports multiple platforms with one codebase. Large plugin ecosystem for hardware access. Active open-source community. Rapid prototyping and deployment

What are the limitations of Cordova?

How can I practice Cordova typing speed?

CodeSpeedTest offers 9+ real Cordova code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.