如何从js中的数组中删除记录

Question

我试图删除一些数组的记录来显示它，但是当我删除记录时，什么都不删除。

Ext.onReady(function() {   
Ext.create('BVCore.Grid', { 
    id:'gridServiceCatalogAll', 
    renderTo: 'gridServiceCatalogAll', 
    stateId: 'gridServiceCatalogAll',  
    store: Ext.create('BVCore.LocalStore', { 
     fields: ['id','category', 'name', 'equipment', 'sizeMin', 'sizeMax', 'description', 'annualCharge'], 
     groupers:[grouper], 
     proxy: { 
      url: '<spring:url value="/controller/search/json/serviceCatAll.json" />'    
     }, 
     listeners:{ 
      load: function(store, records) { 
       Ext.each(records, function(record, index){ 
        Ext.each(records, function(rec, ind){ 
         if((record.get('category') == rec.get('category')) && (record.get('annualCharge') == rec.get('annualCharge')) && (record.get('id') != rec.get('id'))){ 
          store.remove(rec); 
         } 
        }, this); 
       }, this); 
      } 
     } 
    }), 
    features: [{ftype:'grouping'}], 
    columns: [ 
       {text: '<spring:message code="serviceModel.category" />', dataIndex: 'category'}, 
       {text: '<spring:message code="serviceModel.description" />', dataIndex: 'description'}, 
       {text: '<spring:message code="serviceModel.annualCharge" arguments="${year}" />', dataIndex: 'annualCharge'}      
      ] 
}); 

}）;

有人有什么想法吗？

Answer 1

似乎你想删除一个对象的属性，
这里是你如何做到这一点。

var obj = {'foo':'bar'} 
delete obj.foo 
console.log(obj); //Object {} 

Answer 2

对于数组使用拼接：splice