相对于相对时间的Javascript时间戳（例如2秒前，一周前等），最佳方法？

好吧，如果您不太担心准确性，那很容易。平凡的方法有什么问题？

function timeDifference(current, previous) {    var msPerMinute = 60 * 1000;    var msPerHour = msPerMinute * 60;    var msPerDay = msPerHour * 24;    var msPerMonth = msPerDay * 30;    var msPerYear = msPerDay * 365;    var elapsed = current - previous;    if (elapsed < msPerMinute) {         return Math.round(elapsed/1000) + ' seconds ago';       }    else if (elapsed < msPerHour) {         return Math.round(elapsed/msPerMinute) + ' minutes ago';       }    else if (elapsed < msPerDay ) {         return Math.round(elapsed/msPerHour ) + ' hours ago';       }    else if (elapsed < msPerMonth) {        return 'approximately ' + Math.round(elapsed/msPerDay) + ' days ago';       }    else if (elapsed < msPerYear) {        return 'approximately ' + Math.round(elapsed/msPerMonth) + ' months ago';       }    else {        return 'approximately ' + Math.round(elapsed/msPerYear ) + ' years ago';       }}

如果这会让您感到困扰

1 day

1 days