{"type":"rich","categories":["JavaScript"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchaika.hatenablog.com%2Fentry%2F2014%2F11%2F11%2F014038\" title=\"Javascript \u914d\u5217\u3092\u9023\u7d50\u3059\u308b - \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>","blog_url":"https://chaika.hatenablog.com/","provider_name":"Hatena Blog","image_url":null,"version":"1.0","height":"190","url":"https://chaika.hatenablog.com/entry/2014/11/11/014038","blog_title":"\u304b\u3082\u30e1\u30e2","author_name":"kikiki-kiki","published":"2014-11-11 01:40:38","width":"100%","description":"concat()\u95a2\u6570\u3092\u4f7f\u3046\u3002 var a = [1,2,3,4,5]; var b = [6,7,8,9,10]; // \u914d\u5217\u3092\u7d50\u5408 var c = a.concat(b); console.log(c); // [1,2,3,4,5,6,7,8,9,10] console.log(a); // [1,2,3,4,5] cosole.log(b); // [6,7,8,9,10] \u5143\u306e\u914d\u5217\u3092\u7834\u58ca\u305b\u305a\u306b\u7d50\u5408\u3067\u304d\u308b\u3002 Array.prototype.push.apply\u3063\u3066\u306e\u3082\u3042\u308b\u3089\u3057\u3044\u3002 \u5f8c\u3067\u3086\u3063\u304f\u308a\u8aad\u3080\u3002 JavaScript - \u914d\u5217\u306e\u9023\u7d50(concat vs Array.prototype\u2026","author_url":"https://blog.hatena.ne.jp/kikiki-kiki/","title":"Javascript \u914d\u5217\u3092\u9023\u7d50\u3059\u308b","provider_url":"https://hatena.blog"}