Question

我有一个带有数据的json文件，

[
[1,622,782,783,"2015-04-21"],
[2,622,782,783,"2015-04-21"],
[3,622,782,783,"2015-04-22"],
[4,622,782,783,"2015-04-23"],
[5,622,782,783,"2015-04-24"],
[6,622,782,783,"2015-04-28"],
[7,622,782,783,"2015-04-28"],
[8,622,782,783,"2015-04-29"],
[9,622,782,783,"2015-05-04"],
[10,622,782,783,"2015-05-05"]
]

如何选择/加载日期2015-04-23和2015-04-28之间的值？

Answer 1

快速选择：

var data = [
  [1, 622, 782, 783, "2015-04-21"],
  [2, 622, 782, 783, "2015-04-21"],
  [3, 622, 782, 783, "2015-04-22"],
  [4, 622, 782, 783, "2015-04-23"],
  [5, 622, 782, 783, "2015-04-24"],
  [6, 622, 782, 783, "2015-04-28"],
  [7, 622, 782, 783, "2015-04-28"],
  [8, 622, 782, 783, "2015-04-29"],
  [9, 622, 782, 783, "2015-05-04"],
  [10, 622, 782, 783, "2015-05-05"]
];

var fromTime = new Date("2015-04-23").getTime();
var toTime = new Date("2015-04-28").getTime();

var filteredDates = [];
var row, date;

for (i in data) {

  row = data[i];
  date = new Date(row[4]);

  if (date.getTime() >= fromTime && date.getTime() <= toTime) {
    filteredDates.push(row);
  }
}


var results = document.querySelector("#results"); // debugging
results.innerHTML = JSON.stringify(filteredDates); // debugging

<div id="results"></div>

Answer 2

您还可以使用Date.parse（）函数返回自1970年1月1日00:00:00 UTC以来的毫秒数。

然后你可以将比较作为比较整数。

$( document ).ready(function() {

var data = [
  [1, 622, 782, 783, "2015-04-21"],
  [2, 622, 782, 783, "2015-04-21"],
  [3, 622, 782, 783, "2015-04-22"],
  [4, 622, 782, 783, "2015-04-23"],
  [5, 622, 782, 783, "2015-04-24"],
  [6, 622, 782, 783, "2015-04-28"],
  [7, 622, 782, 783, "2015-04-28"],
  [8, 622, 782, 783, "2015-04-29"],
  [9, 622, 782, 783, "2015-05-04"],
  [10, 622, 782, 783, "2015-05-05"]
];

    var date1 = Date.parse("2015-04-23");
    var date2 = Date.parse("2015-04-28");
    var length = data.length;
    var result = [];
    for (var i = 0; i< length ; i++){
        if(Date.parse(data[i][4])>date1 && Date.parse(data[i][4])<date2){
                      result.push(data[i]);
                      }
    }
           alert(JSON.stringify(result));
});

您可以在以下jsfiddle

中查看

从json数据中选择两个日期之间的数据

2 个答案: