如何使用angularjs基于奇偶值拼接数组 [英] how to splice the array based on paritcular value using angularjs

问题描述

我正在使用 angularjs ，并且在作用域中有一个数组.而且，我需要删除范围数组中有大量数据的 No = 1 处的对象.我需要删除特定的值称为"1".

请帮助实现该目标.

  var data = [{否":1，"PatientState":"AK"，"DispenseMonth":"2016年7月1日"}，{否":2，"PatientState":"AK"，"DispenseMonth":"2016年8月1日"}，{否":1，"PatientState":"AK"，"DispenseMonth":"9/1/2016"}，{否":1，"PatientState":"AK"，"DispenseMonth":"2016年10月1日"}，{否":4，"PatientState":"AK"，"DispenseMonth":"11/1/2016"}，{否":1，"PatientState":"AK"，"DispenseMonth":"2/1/2017"}，{否":5，"PatientState":"AK"，"DispenseMonth":"2017年3月1日"}]$ scope.StateInformations =数据; 

解决方案

使用 Array.filter 过滤所需内容，并将过滤结果设置回 $ scope.StateInformations

UPD:

根据您对我的答案的评论，我判断您可能需要一个自定义过滤器才能获得所需的内容，也可以使用 Array.filter 进入自定义过滤器.

请参考以下代码段以及此 plunker演示 ..>

  var app = angular.module("app"，[]);app.controller("myCtrl"，function($ scope){$ scope.conditions = [];$ scope.options = [{检查:错误，价值:1}，{检查:错误，价值:2}，{检查:错误，价值:3}];$ scope.data = [{否":1，"PatientState":"AK"，"DispenseMonth":"2016年7月1日"}，{否":2"PatientState":"AK"，"DispenseMonth":"2016年8月1日"}，{否":1，"PatientState":"AK"，"DispenseMonth":"9/1/2016"}，{否":1，"PatientState":"AK"，"DispenseMonth":"2016年10月1日"}，{否":4"PatientState":"AK"，"DispenseMonth":"11/1/2016"}，{否":1，"PatientState":"AK"，"DispenseMonth":"2/1/2017"}，{否":5"PatientState":"AK"，"DispenseMonth":"2017年3月1日"}];$ scope.setFilterCondition = function(option){如果(option.checked){$ scope.conditions.push(option.value);} 别的 {$ scope.conditions.splice($ scope.conditions.indexOf(option.value)，1);}};});app.filter("sampleFilter"，function(){返回函数(输入，条件){如果(！input){return [];}if(！condition || condition.length === 0){返回输入；}返回input.filter(function(item){for(var i = 0; i< condition.length; i ++){if(item.No === condition [i]){返回true；}}返回false；});};});  

 < script src ="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js></script>< div ng-app ="app" ng-controller ="myCtrl">< div ng-repeat =选项中的选项"><标签>< input type ="checkbox" ng-model ="option.checked" ng-change ="setFilterCondition(option)">{{option.value}}</label></div>< br>< div ng-repeat =数据中的项目| sampleFilter:条件">< span> {{item.No}}}</span>--< span> {{item.PatientState}}</span>--< span> {{item.DispenseMonth}}</span></div></div>  

I'm using angularjs and I have an array in scope. And I need to remove objects where No=1 in scope array lots of data in there. I need to remove particular value is called '1'.

Please help how to achieve this.

    var data=[
      {
         "No":1,
        "PatientState": "AK",
        "DispenseMonth": "7/1/2016" 

      },
      {
        "No":2,
        "PatientState": "AK",
        "DispenseMonth": "8/1/2016" 
      },
      {
         "No":1,
        "PatientState": "AK",
        "DispenseMonth": "9/1/2016" 
      },
      {
        "No":1,
        "PatientState": "AK",
        "DispenseMonth": "10/1/2016" 
      },
      {
        "No":4,
        "PatientState": "AK",
        "DispenseMonth": "11/1/2016" 
      },
      {
        "No":1,
        "PatientState": "AK",
        "DispenseMonth": "2/1/2017" 
      },
      {
         "No":5,
        "PatientState": "AK",
        "DispenseMonth": "3/1/2017" 
      }
        ]

        $scope.StateInformations =data;

解决方案

use Array.filter to filter what you want and set filter result back to $scope. StateInformations

UPD:

according your comments on my answer, I judged you may need a custom filter to get what you want, you can use Array.filter into custom filter also.

refer the below code snippet and this plunker demo.

var app = angular.module("app", []);
app.controller("myCtrl", function($scope) {
  $scope.conditions = [];
  $scope.options = [{
    check: false,
    value: 1
  }, {
    check: false,
    value: 2
  }, {
    check: false,
    value: 3
  }];
  $scope.data = [{
      "No": 1,
      "PatientState": "AK",
      "DispenseMonth": "7/1/2016"
    },
    {
      "No": 2,
      "PatientState": "AK",
      "DispenseMonth": "8/1/2016"
    },
    {
      "No": 1,
      "PatientState": "AK",
      "DispenseMonth": "9/1/2016"
    },
    {
      "No": 1,
      "PatientState": "AK",
      "DispenseMonth": "10/1/2016"
    },
    {
      "No": 4,
      "PatientState": "AK",
      "DispenseMonth": "11/1/2016"
    },
    {
      "No": 1,
      "PatientState": "AK",
      "DispenseMonth": "2/1/2017"
    },
    {
      "No": 5,
      "PatientState": "AK",
      "DispenseMonth": "3/1/2017"
    }
  ];

  $scope.setFilterCondition = function(option) {
    if (option.checked) {
      $scope.conditions.push(option.value);
    } else {
      $scope.conditions.splice($scope.conditions.indexOf(option.value), 1);
    }
  };
});
app.filter("sampleFilter", function() {
  return function(input, condition) {
    if (!input) { return []; }
    if (!condition || condition.length === 0)  { return input; }

    return input.filter(function(item) {
      for (var i = 0; i < condition.length; i++) {
        if (item.No === condition[i]) {
          return true;
        }
      }
      return false;
    });
  };
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<div ng-app="app" ng-controller="myCtrl">
  <div ng-repeat="option in options">
    <label>
      <input type="checkbox" ng-model="option.checked" ng-change="setFilterCondition(option)">
      {{option.value}}
    </label>
  </div>
  <br>
  <div ng-repeat="item in data | sampleFilter: conditions">
    <span>{{item.No}}</span> -
    <span>{{item.PatientState}}</span> -
    <span>{{item.DispenseMonth}}</span>
  </div>
</div>

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