amachang https://blog.hatena.ne.jp/amachang/ IT戦記 https://amachang.hatenablog.com/ JavaScript Function.prototype.state = function() { return undefined }; force = function(v) { return typeof v == 'function' && v.length == 0 ? force(v()) : v; }; memo = function(f, k, v) { var state = f.state; f.state = f.state(k) !== undefined ? state : function(a) { return a === k ? v : state(a) } return v; }… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Famachang.hatenablog.com%2Fentry%2F20080212%2F1202803974" title=" javascript でメモ化 - IT戦記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2008-02-12 17:12:54 rich https://amachang.hatenablog.com/entry/20080212/1202803974 1.0 100%