I have an Array of Objects like this:
[{
date: 2022-04-07T01:00:00.000+00:00,
type: 'profit'
amount: 200
},{
date: 2022-04-07T01:00:00.000+00:00,
type: 'withdraw'
amount: 600
},{
date: 2022-04-07T01:00:00.000+00:00,
type: 'invest'
amount: 900
},{
date: 2022-04-08T01:00:00.000+00:00,
type: 'deposit'
amount: 200
},{
date: 2022-04-08T01:00:00.000+00:00,
type: 'profit'
amount: 200
}]
In the datasource the dates are not in order so I am sorting by date like this:
this.allTransactions.sort((a: any, b: any) => {
return new Date(b.date).getTime() - new Date(a.date).getTime();
});
However I need to also sort any objects with the same date by an external array:
['invest', 'withdraw', 'profit']
I'm struggling with the second part sorting the date groups already sorted by the order in the array. this.allTransactions is in an *ngFor loop in Angular 12
You can add an extra condition after your current one, which will be used if the first one resolves as 0
const typeOrder = ['invest', 'withdraw', 'profit']
transactions.sort((a, b) => {
return new Date(b.date).getTime() - new Date(a.date).getTime() || typeOrder.indexOf(a.type) - typeOrder.indexOf(b.type)
});