2008-06-03から1日間の記事一覧

"Hashを使ってユニークにしよう!" を JavaScript で.

perl-mongers.org を var cars = ["honda", "honda", "suzuki", "toyota", "toyota", "daihatu", "mitubishi"]; var report = {}; cars.forEach(function(car) { report[car] = ++report[car] || 1; }); for(var i in report) { print(i + ": " + report[i])…