出来了,@luacassus 关于指令track by
选项的回答ng-repeat
非常有帮助,但没有解决我的问题。track by
功能正在添加来自服务器的新发票,但在清除非活动发票时出现了一些问题。所以,这是我对问题的解决方案:
function change(scope, newData) {
if (!scope.invoices) {
scope.invoices = [];
jQuery.extend(true, scope.invoices, newData)
}
// Search and update from server invoices that are presented in scope.invoices
for( var i = 0; i < scope.invoices.length; i++){
var isInvoiceFound = false;
for( var j = 0; j < newData.length; j++) {
if( scope.invoices[i] && scope.invoices[i].id && scope.invoices[i].id == newData[j].id ) {
isInvoiceFound = true;
jQuery.extend(true, scope.invoices[i], newData[j])
}
}
if( !isInvoiceFound ) scope.invoices.splice(i, 1);
}
// Search and add invoices that came form server, but are nor presented in scope.invoices
for( var j = 0; j < newData.length; j++){
var isInvoiceFound = false;
for( var i = 0; i < scope.invoices.length; i++) {
if( scope.invoices[i] && scope.invoices[i].id && scope.invoices[i].id == newData[j].id ) {
isInvoiceFound = true;
}
}
if( !isInvoiceFound ) scope.invoices.push(newData[j]);
}
}
在我的网络应用程序中,我使用的是 jQuery 的.extend()
. lo-dash库中有一些不错的选择。