dateUtils.js
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/**
* 将毫秒，转换成时间字符串。例如说，xx 分钟
*
* @param ms 毫秒
* @returns {string} 字符串
*/
export function getDate(ms) {
const day = Math.floor(ms / (24 * 60 * 60 * 1000));
const hour = Math.floor((ms / (60 * 60 * 1000) - day * 24));
const minute = Math.floor(((ms / (60 * 1000)) - day * 24 * 60 - hour * 60));
const second = Math.floor((ms / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - minute * 60));
if (day > 0) {
return day + "天" + hour + "小时" + minute + "分钟";
}
if (hour > 0) {
return hour + "小时" + minute + "分钟";
}
if (minute > 0) {
return minute + "分钟";
}
if (second > 0) {
return second + "秒";
} else {
return 0 + "秒";
}
}
export function beginOfDay(date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate());
}
export function endOfDay(date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate(), 23, 59, 59, 999);
}
export function betweenDay(date1, date2) {
date1 = convertDate(date1);
date2 = convertDate(date2);
// 计算差值
return Math.floor((date2.getTime() - date1.getTime()) / (24 * 3600 * 1000));
}
export function formatDate(date, fmt) {
date = convertDate(date);
const o = {
"M+": date.getMonth() + 1, //月份
"d+": date.getDate(), //日
"H+": date.getHours(), //小时
"m+": date.getMinutes(), //分
"s+": date.getSeconds(), //秒
"q+": Math.floor((date.getMonth() + 3) / 3), //季度
"S": date.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) { // 年份
fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
}
for (const k in o) {
if (new RegExp("(" + k + ")").test(fmt)) {
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
}
}
return fmt;
}
export function addTime(date, time) {
date = convertDate(date);
return new Date(date.getTime() + time);
}
export function convertDate(date) {
if (typeof date === 'string') {
return new Date(date);
}
return date;
}