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itkq/average.js

Created September 28, 2016 09:29
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教務Webで平均点計算
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average.js
c=0;s=0;Array.prototype.forEach.call(document.querySelectorAll('.tableSet01 tr'),function(e,i){t=e.childNodes[6].innerText;if(isFinite(t)){s+=Number(t);c++}});alert(s/c);
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