javascript存储相似的值

Question

我有一个从 sql 数据库中设置的列表

 Team     Name    Date Joined
 TeamA    David   June 3
 TeamB    Mike    July 2
 TeamC    Mark    June 7
 TeamA    Lisa    July 2
 TeamA    Stacy   June 7
 TeamB    Tracy   July 2
 TeamC    Joe     June 3

我希望能够使用 javascript 存储列表并打印加入 TeamA 或 TeamB 或 TeamC 的所有人员和日期。我不确定如何处理这个问题，正在考虑数组但不认为这不会达到我的目标，因为不确定如何将所有项目组合在一起......有没有人有想法

Answer 1

您可以将您的团队定义为对象数组:

var arr = [

 {"team":"TeamA", "name":"David"},
 {"team":"TeamB", "name":"Mike"},
 {"team":"TeamC", "name":"Mark"},
 {"team":"TeamA", "name":"Lisa"},
 {"team":"TeamA", "name":"Stacy"},
 {"team":"TeamB", "name":"Tracy"},
 {"team":"TeamC", "name":"Joe"}

]

它很灵活，您可以根据需要添加任意数量的团队/人员。然后你可以定义一个简单的过滤函数:

var teamFilter = function(obj) {
    return obj.team == this.criteria;
}

你可以像这样调用它来创建新的过滤数组:

arr.criteria = "TeamA";

var arrTeamA = arr.filter(teamFilter, arr);

演示:http://jsfiddle.net/6f2NN/