js 判断两个日期的间隔天数

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let star = '2023-01-06';
let end = '2023-03-06';
let sDate = new Date(star);
let eDate = new Date(end);
let day = eDate.getTime() - sDate.getTime();
let dayNum = parseInt(day/(1000*60*60*24));
console.log(dayNum)
//输入结果 59