{"categories":["JavaScript"],"author_url":"https://blog.hatena.ne.jp/ikemonn/","type":"rich","height":"190","published":"2015-10-15 08:00:00","author_name":"ikemonn","blog_url":"https://ikemonn.hatenablog.com/","provider_name":"Hatena Blog","version":"1.0","title":"\u3010Underscore.js\u3011_.map\u3092\u8aad\u3093\u3060","width":"100%","provider_url":"https://hatena.blog","description":"jashkenas/underscore\u306e_.map\u3092\u8aad\u3093\u3060\u3002 \u6982\u8981 \u7b2c\u4e00\u5f15\u6570\u3067\u4e0e\u3048\u3089\u308c\u305f\u3082\u306e\u306e\u5024\u306b\u5bfe\u3057\u3066\u3001\u7b2c\u4e8c\u5f15\u6570\u306e\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u305d\u306e\u7d50\u679c\u306e\u914d\u5217\u3092\u8fd4\u3059\u3002 var list = [2, 3, 4]; var x = _.map(list, function(n){ return n *= 3; }); console.log(x); // [6, 9, 12] var list = {a: 2, b: 3, c: 4}; var x = _.map(list, function(n){ return n *= 3; }); console.log(x); // [6, 9, 12] \u30bd\u30fc\u30b9\u30b3\u30fc\u2026","url":"https://ikemonn.hatenablog.com/entry/2015/10/15/080000","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fikemonn.hatenablog.com%2Fentry%2F2015%2F10%2F15%2F080000\" title=\"\u3010Underscore.js\u3011_.map\u3092\u8aad\u3093\u3060 - ikemonn&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"blog_title":"ikemonn's blog"}