{"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbufferings.hatenablog.com%2Fentry%2F2020%2F05%2F26%2F003120\" title=\"JavaScript\u306e\u52c9\u5f37\u4e2d\uff1a\u305d\u306e\uff14 Arrays - Mitsuyuki.Shiiba\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","provider_url":"https://hatena.blog","blog_title":"Mitsuyuki.Shiiba","published":"2020-05-26 00:31:20","image_url":null,"blog_url":"https://bufferings.hatenablog.com/","height":"190","provider_name":"Hatena Blog","url":"https://bufferings.hatenablog.com/entry/2020/05/26/003120","categories":["JavaScript"],"width":"100%","title":"JavaScript\u306e\u52c9\u5f37\u4e2d\uff1a\u305d\u306e\uff14 Arrays","author_url":"https://blog.hatena.ne.jp/bufferings/","description":"\u3088\u3057\u3084\u308b\u304b\u30fc\u3002\u5148\u306b\u8a00\u3063\u3066\u304a\u304f\u3068 Arrays \u3060\u3051\u3067\u529b\u5c3d\u304d\u305f\u3002 bufferings.hatenablog.com ## Ch. 7 Arrays 32-bit index \u306a\u306e\u3067 index \u306e\u7bc4\u56f2\u306f 0 \u304b\u3089 4,294,967,294 \u307e\u3067 > let a = [] undefined > a[4294967294] = 1 1 > a.length 4294967295 > a[4294967295] = 2 2 > a.length 4294967295 > a [ <4294967294 empty items>, 1, '4294967295': 2 ] \u3078\u30fc\u3002429496729\u2026","author_name":"bufferings"}