从数组中删除类似的对象 [英] Remove similar objects from array

问题描述

我正在尝试从具有4个相同值和1个唯一值的数组中删除objectt.

I'm trying to remove objectst from an array which have 4 identical values and 1 unique.

快速的Google搜索提供了很多选项，可以从数组中删除相同对象，但不能删除相似的对象.

A quick google search gives a lot of options for removing identical objects from an array, but not objects that are similar.

数组示例:

var data = [
   {Date: "2016-04-27T09:03:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"},
   {Date: "2016-04-27T08:07:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"},
   {Date: "2016-04-27T10:23:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"}
]

我尝试过使用lodash的 _uniq 函数，但是只需要一个属性即可匹配:

I have tried using lodash _uniq function, but it only takes one property to match:

var non_duplidated_data = _.uniq(data, 'Name'); 

除日期外，所有值均相同.如何基于4个属性删除相同的对象?

All values are identical except date. How can I remove identical objects based on 4 properties?

推荐答案

您可以使用纯Javascript解决此问题.只需检查每个对象的每个属性:

You can solve this using plain Javascript. Just check each object for each property:

Array.prototype.allValuesSame = function() {
    for(var i = 1; i < this.length; i++) {
        if(this[i] !== this[0])
            return false;
    }
    return true;
}

var data = [
   {Date: "2016-04-27T09:03:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"},
   {Date: "2016-04-27T08:07:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"},
   {Date: "2016-04-27T10:23:45Z", Name: "Tito", Title: "Developer", Department:"IT", Company: "XXX"}
]

var tmpPropValues = {};
for (var property in data[0]) {
    tmpPropValues[property] = [];

    for(var i = 0; i < data.length; i++) {
        var obj = data[i];

    // store temporary in array
    if (obj.hasOwnProperty(property)) {
      var value = obj[property];

      tmpPropValues[property].push(value);
    }
  }

    if(tmpPropValues[property].allValuesSame()) {
      delete tmpPropValues[property];
  }
}

for(var prop in tmpPropValues) {
    var tmp = document.getElementById("result").innerHTML;
  document.getElementById("result").innerHTML = tmp+" "+prop;

}

我为您制作了小提琴.

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