User:Xenwolf/vector.js
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$( function () {
/* original source: https://www.mediawiki.org/wiki/Gadget_kitchen */
let numWords = $("#mw-content-text > div").text().split(" ").length;
let headerWords = $("h1").text().split(" ").length;
let totalWords = numWords + headerWords;
let timeInMinutes = totalWords / 200;
let header = $("h1").text();
$("h1").text(header + " (it will take you " + timeInMinutes + " minutes to read this page)");
});