{"provider_url":"https://hatena.blog","url":"https://castaneai.hatenablog.com/entry/2017/09/24/011233","image_url":null,"title":"Javascript (Web) \u3067\u30d5\u30a1\u30a4\u30eb\u306e\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u306e\u30e1\u30e2","height":"190","author_name":"castaneai","width":"100%","author_url":"https://blog.hatena.ne.jp/castaneai/","provider_name":"Hatena Blog","version":"1.0","type":"rich","blog_url":"https://castaneai.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcastaneai.hatenablog.com%2Fentry%2F2017%2F09%2F24%2F011233\" title=\"Javascript (Web) \u3067\u30d5\u30a1\u30a4\u30eb\u306e\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7\u306e\u30e1\u30e2 - castaneai\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u30c9\u30e9\u30c3\u30b0\uff06\u30c9\u30ed\u30c3\u30d7 dragover \u30a4\u30d9\u30f3\u30c8\u3067 preventDefault \u3057\u306a\u3044\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066\u3057\u307e\u3044\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3067\u304d\u306a\u3044 dragOver \u3067\u306f\u306a\u304f\u3001 dragover \u3067\u3042\u308b\u3002\u30b9\u30da\u30eb\u30df\u30b9\u3068\u304b\u306b\u5bfe\u3057\u3066\u306a\u3093\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u3068\u304b\u3082\u51fa\u3057\u3066\u304f\u308c\u306a\u3044\u306e\u3067\u3001\u3084\u3063\u3071\u308aJS\u306f\u3064\u3089\u3044 drop \u30a4\u30d9\u30f3\u30c8\u306e dataTransfer \u30d7\u30ed\u30d1\u30c6\u30a3\u304b\u3089\u30c9\u30ed\u30c3\u30d7\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u60c5\u5831\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b dataTransfer.files \u306f FileList\u578b \u3067\u3042\u308a\u3001File[]\u3067\u306f\u306a\u3044 Array.from() \u306b\u6e21\u3057\u3066\u3042\u3052\u308c\u3070 File[] \u306b\u5909\u63db\u3067\u304d\u308b \u3053\u3053\u3092\u8aad\u3081\u3070\u3060\u3044\u305f\u3044OK Web\u7cfb\u2026","categories":["javascript","web"],"blog_title":"castaneai\u306e\u30d6\u30ed\u30b0","published":"2017-09-24 01:12:33"}