MichaelSnowden/duolingo.js

Last active July 15, 2016 07:49

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Count remaining lessons on Duolingo. You need jQuery on the page for this. This is a great plugin for that https://chrome.google.com/webstore/detail/jquery-injector/indebdooekgjhkncmgbkeopjebofdoid/related?hl=en. Run this on the Duolingo home page to see how many lessons you have remaining https://www.duolingo.com/

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duolingo.js

"Lessons left: " + $(".lessons-left").text().split("").map((v, i) => i % 3 == 0 ? -parseInt(v) : i % 3 == 1 ? 0 : parseInt(v)).reduce((a, b) => a + b)

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