{"image_url":null,"version":"1.0","published":"2015-09-03 23:01:35","author_name":"ABA","height":"190","provider_url":"https://hatena.blog","width":"100%","provider_name":"Hatena Blog","url":"https://aba.hatenablog.com/entry/2015/09/03/230135","categories":[],"blog_url":"https://aba.hatenablog.com/","title":"BLCK4777\u306e\u7d75\u306e\u4f5c\u3089\u308c\u65b9\u3082\u77e5\u3063\u3066\u304a\u304d\u305f\u3044","type":"rich","author_url":"https://blog.hatena.ne.jp/ABA/","blog_title":"ABA\u306e\u65e5\u8a8c","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faba.hatenablog.com%2Fentry%2F2015%2F09%2F03%2F230135\" title=\"BLCK4777\u306e\u7d75\u306e\u4f5c\u3089\u308c\u65b9\u3082\u77e5\u3063\u3066\u304a\u304d\u305f\u3044 - ABA\u306e\u65e5\u8a8c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"JavaScript\u30c7\u30e2BLCK4777\u306e\u97f3\u306e\u4f5c\u3089\u308c\u65b9\u306b\u3064\u3044\u3066\u524d\u306b\u8abf\u3079\u305f\u306e\u3067\u3001\u3064\u3044\u3067\u306b\u305d\u306e\u7d75\u306e\u65b9\u3082\u3069\u306e\u3088\u3046\u306b\u4f5c\u3089\u308c\u3066\u3044\u308b\u304b\u8abf\u3079\u3066\u307f\u305f\u3002\u591a\u5206\u306b\u61b6\u6e2c\u304c\u5165\u3063\u3066\u3044\u308b\u3051\u3069\u3001\u591a\u5206\u4ee5\u4e0b\u306e\u69d8\u306a\u611f\u3058\u3001\u306e\u306f\u305a\u3002 \u524d\u306e\u8a18\u4e8b\u3067\u8ffd\u3063\u305fAudio\u751f\u6210\u90e8\u5206\u3092\u9664\u3044\u3066\u30b3\u30fc\u30c9\u3092\u6574\u7406\u3057\u3066\u307f\u308b\u3068\u3001\u4ee5\u4e0b\u306b\u306a\u308b\u3002 ctx = b.getContext('2d'); p = 0; window.onload = function() { b.style.background = \"radial-gradient(circle,#345,#000)\"; b.style.position = \"fixed\"; b.style.height =\u2026"}