javascript - moment.js - 测试日期是今天、昨天、一周或两周前

Question

我正在尝试使用 moment.js 来了解日期是今天、昨天、1 周前还是更早(2 周前或更早)。

前两种情况我已经这样做了:

var today = moment().startOf('day');
var yesterday = moment().subtract(1, 'days').startOf('day');

if (moment(localTime).isSame(today, 'd')) // today
    // do something
if (moment(localTime).isSame(yesterday, 'd')) // yesterday
    // do something

对吗？

但是，我如何检查日期是一周前还是更早(例如两周前)？

Answer 1

这里有一些有用的东西:

var REFERENCE = moment("2015-06-05"); // fixed just for testing, use moment();
var TODAY = REFERENCE.clone().startOf('day');
var YESTERDAY = REFERENCE.clone().subtract(1, 'days').startOf('day');
var A_WEEK_OLD = REFERENCE.clone().subtract(7, 'days').startOf('day');

function isToday(momentDate) {
    return momentDate.isSame(TODAY, 'd');
}
function isYesterday(momentDate) {
    return momentDate.isSame(YESTERDAY, 'd');
}
function isWithinAWeek(momentDate) {
    return momentDate.isAfter(A_WEEK_OLD);
}
function isTwoWeeksOrMore(momentDate) {
    return !isWithinAWeek(momentDate);
}

console.log("is it today? ..................Should be true: "+isToday(moment("2015-06-05")));
console.log("is it yesterday? ..............Should be true: "+isYesterday(moment("2015-06-04")));
console.log("is it within a week? ..........Should be true: "+isWithinAWeek(moment("2015-06-03")));
console.log("is it within a week? ..........Should be false: "+isWithinAWeek(moment("2015-05-29")));
console.log("is it two weeks older or more? Should be false: "+isTwoWeeksOrMore(moment("2015-05-30")));
console.log("is it two weeks older or more? Should be true: "+isTwoWeeksOrMore(moment("2015-05-29")));

Check a JSFiddle demo进行更多测试，因此您可以根据需要针对具体情况进行调整。