直接根据秒来判断,代码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript">
function getTimeDistance(time) {
// 支持传入10位或13位毫秒数,如 1587367194536,"1587367194"
// 支持传入日期格式,如 "2020/4/20 15:31:18"
if (typeof time == "number" || Number(time) == time) {
if (String(time).length == 10) {
time = Number(time) * 1000
} else if (String(time).length == 13) {
time = Number(time)
} else {
console.log("时间格式错误");
return time;
}
} else {
if (typeof time == "string" && time.split(" ").length == 2 && time.split(/[- : \/]/).length == 6) {
time = new Date(time.replace(/\-/g, '/')).getTime();
} else {
console.log("时间格式错误");
return time;
}
}
// 处理之后的time为13位数字格式的毫秒数
var date_now = new Date();
var date_time = new Date(time);
var distance = date_now.getTime() - time;
var days = parseInt(distance / (1000 * 60 * 60 * 24));
if (days == 1) {
return "昨天"
} else if (days > 1 && days < 4) {
return days + "天前";
} else if (days > 3) {
// 超过3天的,返回日期,如 2018-12-05
// 如果是今年的,就省去年份,返回 12-05
var year = date_time.getFullYear();
var month = date_time.getMonth() + 1;
if (month < 10) {
month = "0" + month;
}
var day = date_time.getDate();
if (day < 10) {
day = "0" + day;
}
if (date_now.getFullYear() == year) {
return month + "-" + day;
} else {
return year + "-" + month + "-" + day;
}
}
var hours = parseInt((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
if (hours > 0) {
return hours + "小时前";
}
var minutes = parseInt((distance % (1000 * 60 * 60)) / (1000 * 60));
if (minutes > 0) {
return minutes + "分钟前";
};
return "刚刚";
}
// 调用方法
var time = new Date("2021-08-08 12:00:00").getTime();
alert(getTimeDistance(time)) // => 2天前
</script>
</head>
<body>
</body>
</html>
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