下划线:删除具有某些重复属性的对象 [英] Underscore: Remove object having some duplicate properties

问题描述

有人可以帮我从数组中删除具有某些重复属性的对象吗?

can somebody help me remove object from array having some duplicate properties.

var data = [{
    "IDPOSITION": "1",
    "LATITUDE": "5.35961",
    "LONGITUDE": "-3.10095",
    "IDUSAGER": "1",
    "DATECREATION": "2013-10-12 21:53:09"
}, {
    "IDPOSITION": "2",
    "LATITUDE": "5.35961",
    "LONGITUDE": "-4.00095",
    "IDUSAGER": "1",
    "DATECREATION": "2013-10-12 21:53:51"
}, {
    "IDPOSITION": "3",
    "LATITUDE": "5.35961",
    "LONGITUDE": "-4.00095",
    "IDUSAGER": "1",
    "DATECREATION": "2013-10-12 21:53:53"
}];

我需要删除具有相同(纬度、经度)的对象.在上面的示例中，数据[1] 和数据[2] 与标准(纬度、经度)重复

I need to remove objects having same couple of (LATITUDE, LONGITUDE). In the example above data[1] and data[2] are duplicate from criteras (LATITUDE, LONGITUDE)

推荐答案

例如:

_.uniq(data, function(x) { return x.LATITUDE + "/" + x.LONGITUDE })

基本上，您提供了一个函数，该函数应该根据选定的属性返回哈希值.

Basically, you provide a function that is supposed to return a hash value based on selected properties.

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