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abinavseelan/index.html

Created March 16, 2018 06:25
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(3) Page Visibility API
Raw
index.html
...
<body>
<script type="text/javascript">
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
document.title = '😴';
}
if (document.visibilityState === 'visible') {
document.title = '😁';
}
});
</script>
</body>
...
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