{"provider_url":"https://hatena.blog","type":"rich","blog_title":"\u30ce\u30f3\u30ab\u30d5\u30a7\u30a4\u30f3\u3067\u3042\u306a\u305f\u306b\u3084\u3055\u3057\u3044","description":"javascript\u306e\u914d\u5217\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8981\u7d20\u6570\u8abf\u3079\u308c\u3070\u3044\u3044\u306e\u3067\u3059\u304c var a = [1, 2]; console.log(a.lenght > 0); // true \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306flength\u306a\u3069\u7121\u3044\u3068\u2026 var h = { a: 1, b: 2 }; console.log(h.lenght > 0); // undefined \u89e3\u6c7a\u65b9\u6cd5 var h = { a: 1, b: 2 }; console.log(Object.keys(h).lenght > 0); // true","categories":["javascript"],"image_url":null,"url":"https://akinobu.net/entry/2015/07/14/115909","provider_name":"Hatena Blog","blog_url":"https://akinobu.net/","version":"1.0","author_url":"https://blog.hatena.ne.jp/kuronekopunk/","author_name":"kuronekopunk","published":"2015-07-14 11:59:09","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fakinobu.net%2Fentry%2F2015%2F07%2F14%2F115909\" title=\"JavaScript\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(hash:\u30cf\u30c3\u30b7\u30e5)\u306e\u7a7a\u5224\u5b9a - \u30ce\u30f3\u30ab\u30d5\u30a7\u30a4\u30f3\u3067\u3042\u306a\u305f\u306b\u3084\u3055\u3057\u3044\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","title":"JavaScript\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(hash:\u30cf\u30c3\u30b7\u30e5)\u306e\u7a7a\u5224\u5b9a","height":"190"}