angular key value pipe compareFn example
// Preserve original property order
originalOrder = (a: KeyValue<number,string>, b: KeyValue<number,string>): number => {
return 0;
}
// Order by ascending property value
valueAscOrder = (a: KeyValue<number,string>, b: KeyValue<number,string>): number => {
return a.value.localeCompare(b.value);
}
// Order by descending property key
keyDescOrder = (a: KeyValue<number,string>, b: KeyValue<number,string>): number => {
return a.key > b.key ? -1 : (b.key > a.key ? 1 : 0);
}