I am encountering an error stating that Type 'Function' does not match the signature for the filter function below. This is because the filter function expects a specific type. How can I define my callback function to align with what the filter function expects?
private _getItemFilteredBy(itemName: string, Fn: Function): Observable<any[]> {
return this.getItemByName(itemName)
.map((items: any[]) => {
return items.filter( Fn );
});
}
In order for the filter to work correctly, a predicate is required. Ensure the type is changed to (x:any) => boolean
private _getFilteredItem(itemName: string, Fn: (x:any) => boolean): Observable<any[]> {
return this.getItemByName(itemName)
.map((items: any[]) => {
return items.filter( Fn );
});
}
If there is more specific type information available than just 'any', it is recommended to update that as well. The solution provided should address the issue.
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