如何按日期排序Json（从最新到最旧）

Question

我有一个带有文章的json feed（每隔几天就有新版本），我需要获得最新的三个。问题是，json没有按日期排序，我不知道，如何按日期重新排列最新到最旧。我用js / jQuery。我的json文件如下所示：

[  
{  
  "author":"some text",
  "title":"some text",
  "description":"some text",
  "image_big":"image link",
  "image_small":"image link",
  "date":"2015-06-17",
  "content":"some text some text some text some text some text",
  "category":"category",
  "subcategory":[
     "some subcategory"
  ],
  "keywords":"keywords,keywords...",
  "id":"45654",
  "url":"article link"
},
.
. (more articles)
.
]

Answer 1

您可以使用Array.sort()功能。像这样：

(function() {
  var data = [{
    "author": "some text",
    "title": "some text",
    "description": "some text",
    "image_big": "image link",
    "image_small": "image link",
    "date": "2015-06-17",
    "content": "some text some text some text some text some text",
    "category": "category",
    "subcategory": [
      "some subcategory"
    ],
    "keywords": "keywords,keywords...",
    "id": "45654",
    "url": "article link"
  }, {
    "author": "some text 2",
    "title": "some text 2",
    "description": "some text 2",
    "image_big": "image link 2",
    "image_small": "image link 2",
    "date": "2015-06-20",
    "content": "some text some text some text some text some text",
    "category": "category",
    "subcategory": [
      "some subcategory"
    ],
    "keywords": "keywords,keywords...",
    "id": "45654",
    "url": "article link"
  }];


  console.log(data.sort(function(a, b) {
    return b.date > a.date;
  }));
})();