to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
Bitcoin made big news within the last several weeks, as El Salvador became the first nation to pass a law allowing the electronic currency to be accepted as legal tender within that country.
It became bigger news a little over a week later, when the World Bank declined to support El Salvador's use of the cryptocurrency.
All these actions raise some basic questions. Namely, what is Bitcoin and how exactly does it work? For the answer to those questions, we turned to Grant Sanderson's 26 minute 3Blue1Brown video to find out:
Meanwhile, if you want a real flash from the past, here's the first analysis we saw from an economist on the topic of bitcoin. Here's an excerpt from their recent e-mail on the topic of Bitcoin's adoption by El Salvador.
Bonus Update: What's the future for blockchain ledger transactions? It could be cryptographic proofs, which would be an interesting way to 'compress' Bitcoin ledger transactions into a more resource efficient process (HT: Tyler Cowen).
Labels: math, technology
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Closing values for previous trading day.
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