How to search object with the smallest value? [closed]

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The issue seems to be in string comparison

let intervals = 
[
   { id: "1", interval_start: "0", interval_end: "40" },
   { id: "2", interval_start: "41", interval_end: "65" },
   { id: "3", interval_start: "66", interval_end: "80" },
   { id: "4", interval_start: "81", interval_end: "100" },
];

console.log(intervals.reduce((prev, current) => parseInt(prev.interval_end) < parseInt(current.interval_end) ? prev : current, {}))

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