Javascript simple date string comparison

I need to check if a date string is within a date range.

// Set up
const dateRange = ["2020-07-30", "2020-07-20"];

let n = 0;

const collection = [
{ "createdOn": "2020-07-01", title: `title # ${ n++ }` },
{ "createdOn": "2020-07-10", title: `title # ${ n++ }` },
{ "createdOn": "2020-07-20", title: `title # ${ n++ }` }, // Include
{ "createdOn": "2020-07-21", title: `title # ${ n++ }` }, // Include
{ "createdOn": "2020-07-21", title: `title # ${ n++ }` }, // Include
{ "createdOn": "2020-07-30", title: `title # ${ n++ }` }, // Include
{ "createdOn": "2020-07-30", title: `title # ${ n++ }` }, // Include
{ "createdOn": "2020-07-31", title: `title # ${ n++ }` },
];

// Solution
const filter = (collection, dateRange) => {
    const dates = [...dateRange].sort(); // Sorts the date range: from -> to
    return collection.filter(item => item.createdOn >= dates[0] && item.createdOn <= dates[1]); // returns either array of objects or an empty array
}

console.table(filter(collection, dateRange));

┌─────────┬──────────────┬─────────────┐ 
│ (index) │ createdOn    │ title       │ 
├─────────┼──────────────┼─────────────┤ 
│ 0       │ '2020-07-20' │ 'title # 2' │ 
│ 1       │ '2020-07-21' │ 'title # 3' │ 
│ 2       │ '2020-07-21' │ 'title # 4' │ 
│ 3       │ '2020-07-30' │ 'title # 5' │ 
│ 4       │ '2020-07-30' │ 'title # 6' │ 
└─────────┴──────────────┴─────────────┘