Created
March 13, 2022 10:38
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Track tabs open for same website for react.js app
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useEffect(() => { | |
// define increment counter part | |
const tabsOpen = localStorage.getItem('tabsOpen') | |
console.log('tabsOpen', tabsOpen) | |
if (tabsOpen == null) { | |
localStorage.setItem('tabsOpen', 1) | |
} else { | |
localStorage.setItem('tabsOpen', parseInt(tabsOpen) + parseInt(1)) | |
} | |
// define decrement counter part | |
window.onunload = function (e) { | |
const newTabCount = localStorage.getItem('tabsOpen') | |
if (newTabCount !== null) { | |
localStorage.setItem('tabsOpen', newTabCount - 1) | |
} | |
} | |
}, []) |
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