D3使用技巧

合并数组，排序数组

    var result2=[{Date: "2017-09-27 22:03:00", Open: "111", High: "1111", Low: "1111"},{Date: "2017-09-27 22:02:00", Open: "27510", High: "27510", Low: "27504"}];
    var result=[{Date: "2017-09-27 23:03:00", Open: "111", High: "1111", Low: "1111"},{Date: "2017-09-27 23:02:00", Open: "27510", High: "27510", Low: "27504"}];
    var t=new Array();
    t.push(result);
    t.push(result2);
    var result=d3.merge(t);
    var nest=d3.nest().key(function(d){return d.Date}).sortKeys(d3.ascending).entries(result);
    var r=new Array();
    for(var i=0;i<nest.length;i++)
    {
    r.push(nest[i].values[0]);
    }
    console.log(r);