英文:
How to sort numbers from largest to smallest?
问题
I'm trying to sort numbers from largest to smallest, but I didn't manage to do it.
My code sorted numbers with 5 digits perfectly but not the rest.
here is an example:
The result should be:
I don't understand why it doesn't sort everything at once?
template
<ng-container *ngFor="let transfer of transferResponse.PRE">
<ng-container *ngFor="let preptf of transfer.PREPTF">
...
interface
export interface TransferResponse extends ApiResponse {
PRE: Transfer[];
}
export interface Transfer {
DEPO: number;
CLER: string;
INTITULE1: string;
PHONE: string;
PREPTF: {
LABEL: string;
TYPE: string;
QUANTITE: number;
STATUT: number;
NUM: number;
ISIN: string;
STATUT_LIB: string;
REF_RBC: string;
}[];
}
composent
export class OverviewTransfersComponent implements OnInit, OnDestroy {
private unsubscribe$ = new Subject < void > ();
currentAgency: any;
transferResponse: TransferResponse;
constructor(
private service: OverviewTransfersService,
private store: Store,
private modalService: BsModalService,
private router: Router
) {}
ngOnInit(): void {
this.currentAgency = this store.selectSnapshot(AgencyState.currentAgency);
if (this.currentAgency) {
this.OverviewTransfers();
}
}
ngOnDestroy(): void {
this.unsubscribe$.next();
this.unsubscribe$.complete();
}
OverviewTransfers(): void {
console.log('Before the request service.OverviewTransfers()');
this.service.OverviewTransfers().pipe(
takeUntil(this.unsubscribe$)
).subscribe(res => {
console.log('Response service.OverviewTransfers()', res);
if (res.RETURNCODE === ApiResponseCodeEnum.Ok) {
const transferResponse = res as TransferResponse;
console.log('Before sorting', transferResponse);
transferResponse.PRE.forEach(transfer => {
transfer.PREPTF.sort((a, b) => {
return b.NUM - a.NUM;
});
});
console.log('After sorting', transferResponse);
this.transferResponse = transferResponse;
}
});
}
}
console.log
英文:
I'm trying to sort numbers from largest to smallest, but I didn't manage to do it.
My code sorted numbers with 5 digits perfectly but not the rest.
here is an example:
15366
13070
13069
13068
13067
13066
13065
13064
313883
313880
313878
313876
313874
313872
313870
313869
313868
The result should be:
313883
313880
313878
313876
313874
313872
313870
313869
313868
15366
13070
13069
13068
13067
13066
13065
13064
I don't understand why it doesn't sort everything at once?
template
<ng-container *ngFor="let transfer of transferResponse.PRE">
<ng-container *ngFor="let preptf of transfer.PREPTF">
<tr>
...
<td class="text-center">
<a [routerLink]="['/transfers/customer-transfer-details/' + preptf.NUM]">{{preptf.NUM }} </a>
</td>
...
</tr>
</ng-container>
</ng-container>
interface
export interface TransferResponse extends ApiResponse {
PRE: Transfer[];
}
export interface Transfer {
DEPO: number;
CLER: string;
INTITULE1: string;
PHONE: string;
PREPTF: {
LABEL: string;
TYPE: string;
QUANTITE: number;
STATUT: number;
NUM: number;
ISIN: string;
STATUT_LIB: string;
REF_RBC: string;
}[];
}
composent
export class OverviewTransfersComponent implements OnInit, OnDestroy {
private unsubscribe$ = new Subject < void > ();
currentAgency: any;
transferResponse: TransferResponse;
constructor(
private service: OverviewTransfersService,
private store: Store,
private modalService: BsModalService,
private router: Router
) {}
ngOnInit(): void {
this.currentAgency = this.store.selectSnapshot(AgencyState.currentAgency);
if (this.currentAgency) {
this.OverviewTransfers();
}
}
ngOnDestroy(): void {
this.unsubscribe$.next();
this.unsubscribe$.complete();
}
OverviewTransfers(): void {
console.log('Before the request service.OverviewTransfers()');
this.service.OverviewTransfers().pipe(
takeUntil(this.unsubscribe$)
).subscribe(res => {
console.log('Response service.OverviewTransfers()', res);
if (res.RETURNCODE === ApiResponseCodeEnum.Ok) {
const transferResponse = res as TransferResponse;
console.log('Before sorting', transferResponse);
transferResponse.PRE.forEach(transfer => {
transfer.PREPTF.sort((a, b) => {
return b.NUM - a.NUM;
});
});
console.log('After sorting', transferResponse);
this.transferResponse = transferResponse;
}
});
}
}
console.log
Response service.OverviewTransfers()
Before sorting service.OverviewTransfers()
After sorting service.OverviewTransfers()
Thank you in advance for your help.
答案1
得分: 1
这不起作用，因为您正在对一个数组内部的数组进行排序。
首先，您有一个TransferResponse数组，您正在迭代以对子数组PREPTF进行排序。
如果您想这样做，您需要将所有数字重新分组到一个单一的数组中，然后对它们进行排序。
英文:
It does not work because you are sorting an array inside an array.
First you have an array of TransferResponse, on which you are iterating to sort the sub array PREPTF.
If you want to do that, you will need to regroup all the numbers in a single array and then sort them.
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