{"width":"100%","title":" mozilla \u306e JavaScript \u306f\u5b9f\u88c5\u4e0a lvalue-return \u3067\u304d\u308b","image_url":null,"author_name":"amachang","published":"2006-11-01 19:15:24","provider_name":"Hatena Blog","blog_url":"https://amachang.hatenablog.com/","version":"1.0","description":"lvalue-return \u3068\u306f Perl \u3068\u304b\u306e substr \u306e\u3088\u3046\u306a $file = \"hoge.pl\"; substr($file, 5) = \"js\"; print \"$file\\n\"; # hoge.js\u5de6\u8fba\u5024\u306b\u95a2\u6570\u30b3\u30fc\u30eb\u304c\u304f\u308b\u5f62 JavaScript \u306f lvalue-return \u3067\u304d\u308b\u3002 SpiderMonkey \u306e js \u30b3\u30de\u30f3\u30c9\u3067\u3053\u3046\u3044\u3046\u611f\u3058 $ js js> it.item(1) = 1; 1 js> it.item(1)++; 1 js> it.item(1); 2 \u3057\u304b\u3057 lvalue-return \u3067\u304d\u308b\u95a2\u6570\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u304b\u3089\u3057\u304b\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002 \u3057\u304b\u3082\u3001\u30d6\u30e9\u30a6\u2026","type":"rich","author_url":"https://blog.hatena.ne.jp/amachang/","provider_url":"https://hatena.blog","blog_title":"IT\u6226\u8a18","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Famachang.hatenablog.com%2Fentry%2F20061101%2F1162376124\" title=\" mozilla \u306e JavaScript \u306f\u5b9f\u88c5\u4e0a lvalue-return \u3067\u304d\u308b - IT\u6226\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","categories":["JavaScript","Firefox"],"url":"https://amachang.hatenablog.com/entry/20061101/1162376124"}