{"published":"2013-11-19 10:03:39","width":"100%","image_url":null,"url":"https://rtshaaaa.hateblo.jp/entry/2013/11/19/100339","blog_url":"https://rtshaaaa.hateblo.jp/","author_url":"https://blog.hatena.ne.jp/rtshaaaa/","blog_title":"\u3042\u307e\u308a\u65b0\u3057\u304f\u306a\u3044\u3082\u306e","title":"js\u306e\u30bc\u30ed\u30d1\u30c7\u30a3\u30f3\u30b0","description":"\u3088\u304f\u4f7f\u3046\u3084\u3064\u3002 function zeroPadding(num, order) { var r = new Array(order); return (r.join(0)+num).slice(-order); } console.log(zeroPadding(1,2); // -> 01 console.log(zeroPadding(120,5); // -> 00120 \u4e00\u884c\u3067\u66f8\u304f\u306a\u3089 function zeroPadding(num, order) { return ((new Array(order)).join(0)+num).slice(-order); } \u3084\u3063\u3066\u308b\u3053\u3068\u306f\u4e0b\u2026","height":"190","categories":["javascript"],"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frtshaaaa.hateblo.jp%2Fentry%2F2013%2F11%2F19%2F100339\" title=\"js\u306e\u30bc\u30ed\u30d1\u30c7\u30a3\u30f3\u30b0 - \u3042\u307e\u308a\u65b0\u3057\u304f\u306a\u3044\u3082\u306e\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","author_name":"rtshaaaa"}