使用其名称/值从数组中删除项目

Question

我有以下数组

var countries = {};

countries.results = [
    {id:'AF',name:'Afghanistan'},
    {id:'AL',name:'Albania'},
    {id:'DZ',name:'Algeria'}
];

如何使用其名称或ID从此数组中删除项？

谢谢

Answer 1

为此创造了一个方便的功能..

function findAndRemove(array, property, value) {
  array.forEach(function(result, index) {
    if(result[property] === value) {
      //Remove from array
      array.splice(index, 1);
    }    
  });
}

//Checks countries.result for an object with a property of 'id' whose value is 'AF'
//Then removes it ;p
findAndRemove(countries.results, 'id', 'AF');

Answer 2

Array.prototype.removeValue = function(name, value){
   var array = $.map(this, function(v,i){
      return v[name] === value ? null : v;
   });
   this.length = 0; //clear original array
   this.push.apply(this, array); //push all elements except the one we want to delete
}

countries.results.removeValue('name', 'Albania');

Answer 3

试试这个:

var COUNTRY_ID = 'AL';

countries.results = 
  countries.results.filter(function(el){ return el.id != COUNTRY_ID; });