40 lines
1.0 KiB
HTML
40 lines
1.0 KiB
HTML
<html>
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<head>
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<title>Servant: counter</title>
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<style>
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body { text-align: center; }
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#counter { color: green; }
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#inc { margin: 0px 20px; background-color: green; color: white; }
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</style>
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</head>
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<body>
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<h1>Vanilla version</h1>
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<span id="counter">Counter: 0</span>
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<button id="inc">Increase</button>
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<script src="api.js" type="text/javascript"></script>
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<script type="text/javascript">
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window.addEventListener('load', function() {
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// we get the current value stored by the server when the page is loaded
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getCounter(updateCounter, alert);
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// we update the value every 1sec, in the same way
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window.setInterval(function() {
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getCounter(updateCounter, alert);
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}, 1000);
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});
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function updateCounter(response)
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{
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document.getElementById('counter').innerHTML = 'Counter: ' + response.value;
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}
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// when the button is clicked, ask the server to increase
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// the value by one
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document.getElementById('inc').addEventListener('click', function() {
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postCounter(updateCounter, alert);
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});
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</script>
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</body>
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</html>
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