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felquis/estimate-reading-time.js

Last active March 18, 2017 06:15
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How much time would I take to read a web page?
Raw
estimate-reading-time.js
// output is in minutes
document.body.innerText.split(' ')
.filter((split) => split.length > 1)
.map((split) => split.replace(/[^a-zZ-a]+/g, ''))
.filter((split) => split.length > 1)
.reduce((acc, split) => {
const time = split.split('').length * 115
return [...acc, (time > 500) ? time : 500]
}, [])
.reduce((acc, time) => ([acc[0] + time]), [0])
.map((time) => (time / 1000 / 60))
// instead of using document.body, you can select only the main content of your page
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