Question

我的数据对象结构如下

  var maxObject = _.max(data,function(obj){
     return parseInt(obj.Points) && parseFloat(obj.Rating)
    });

    console.log(maxObject.Person);

我使用下面的underscore.js获得结果

<span class="arc-gauge-title">{{title | translate}}</span>
<app-change-pages-dropdown [pageTitle]="pageTitle | translate"></app-change-pages-dropdown>

以上代码结果为“Kay”，但我希望得到“Micheal”

的结果

Answer 1

我找到了答案。工作代码如下;

data = [
{
    Points: "13",
    Rating: "-2",
    Person: "Joe"
},
{
    Points: "13",
    Rating: "200",
    Person: "Kay"
},
{
    Points: "17",
    Rating: "32.8",
    Person: "Micheal"
}];

// sort version
var maxObject = _.first(data.sort(function (a, b) {   
    return parseFloat(a.Points) - parseFloat(b.Points) || parseFloat(a.Rating) - parseFloat(b.Rating);
}).reverse());


// long version
data.sort(function (a, b) {
    var aSize = parseFloat(a.Points);
    var bSize =  parseFloat(b.Points);
    var aLow =  parseFloat(a.Rating);
    var bLow =  parseFloat(b.Rating);
    console.log(aLow + " | " + bLow);

    if(aSize == bSize)
    {
        return (aLow < bLow) ? -1 : (aLow > bLow) ? 1 : 0;
    }
    else
    {
        return (aSize < bSize) ? -1 : 1;
    }
}).reverse();

alert(JSON.stringify(maxObject));

http://jsfiddle.net/hbuc2knj/73/

通过多属性dimesional获取最大值

1 个答案: