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module_weakmap.html
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module_weakmap.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Interactive HTML Example - WeakMap</title>
</head>
<body>
<h1>Interactive HTML Example - WeakMap</h1>
<button id="increment-counter">Increment Counter</button>
<button id="reset-counter">Reset Counter</button>
<p>Output: <span id="output"></span></p>
<script>
let _counter = new WeakMap();
class Module {
constructor() {
_counter.set(this, 0);
}
incrementCounter() {
let counter = _counter.get(this);
counter++;
_counter.set(this, counter);
return _counter.get(this);
}
resetCounter() {
console.log(`counter value prior to reset: ${_counter.get(this)}`);
_counter.set(this, 0);
}
}
const testModule = new Module();
// UI elements
const incrementCounterButton = document.getElementById('increment-counter');
const resetCounterButton = document.getElementById('reset-counter');
const outputElement = document.getElementById('output');
incrementCounterButton.addEventListener('click', () => {
const newValue = testModule.incrementCounter();
outputElement.textContent = `Counter incremented. New value: ${newValue}`;
});
resetCounterButton.addEventListener('click', () => {
testModule.resetCounter();
outputElement.textContent = 'Counter reset.';
});
</script>
</body>
</html>