Filter Array in Array by date between 2 dates

let start = new Date(this.min);
let end   = new Date(this.max);

return items.filter(item => {
   let date = new Date(item.created_at);
   return date >= start && date <= end;
}

I had an issue with this when the end date was the same as the start date to solve this issue I had to set the time on the end date to 23.59

const start =  new Date().getTime()
const end=new Date()
end.setHours(23,59,59,999)
end.getTime()

return items.filter(item => {
   let date = new Date(item.created_at).getTime();
   return date >= start && date <= end;
}

You need to return the compairing value, either explicit

data.series = data.series.filter((item: any) => {
    return item.date.getTime() >= fromDate.getTime() &&
           item.date.getTime() <= toDate.getTime();
});

or without the brackets, implicit.

data.series = data.series.filter((item: any) =>
    item.date.getTime() >= fromDate.getTime() && item.date.getTime() <= toDate.getTime()
);