{"provider_name":"Hatena Blog","provider_url":"https://hatena.blog","published":"2020-12-31 17:00:00","blog_title":"\u304b\u3082\u30e1\u30e2","url":"https://chaika.hatenablog.com/entry/2020/12/31/170000","author_url":"https://blog.hatena.ne.jp/kikiki-kiki/","image_url":"https://m.media-amazon.com/images/I/61KuchzlyFL.jpg","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchaika.hatenablog.com%2Fentry%2F2020%2F12%2F31%2F170000\" title=\"JavaScript \u3067 \u304a\u3057\u3048\u3066 A to Z - \u304b\u3082\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"JavaScript \u3067 \u304a\u3057\u3048\u3066 A to Z","author_name":"kikiki-kiki","version":"1.0","description":"2020\u5e74\u6700\u5f8c\u306a\u306e\u3067\u30cd\u30bf\u6295\u7a3f\u3067\u3059\u3002 charCodeAt \u3092\u4f7f\u3063\u3066 A-Z \u306e\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u4f5c\u308b charCodeAt() \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u4f4d\u7f6e\u306b\u3042\u308b UTF-16 \u30b3\u30fc\u30c9\u30e6\u30cb\u30c3\u30c8\u3092\u8868\u3059 0 \u304b\u3089 65535 \u307e\u3067\u306e\u6574\u6570\u3092\u8fd4\u3057\u307e\u3059\u3002 cf. String.prototype.charCodeAt() - JavaScript | MDN 'A'.charCodeAt(0); // => 65 fromCharCode \u6587\u5b57\u30b3\u30fc\u30c9\u304b\u3089\u6587\u5b57\u306b\u623b\u3059 \u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3057\u3066 String.fromCharCode \u3092\u4f7f\u3063\u3066\u6587\u5b57\u306b\u623b\u3059 String.fromCharCode() \u9759\u7684\u30e1\u2026","height":"190","type":"rich","width":"100%","categories":["JavaScript","Tips"],"blog_url":"https://chaika.hatenablog.com/"}