1 files changed, 147 insertions, 0 deletions

diff --git a/web/assets/js/util/date-util.js b/web/assets/js/util/date-util.js
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index 00000000..24e08879
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+++ b/web/assets/js/util/date-util.js
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+const oneMinute = 1000 * 60; // 一分钟的毫秒数
+const oneHour = oneMinute * 60; // 一小时的毫秒数
+const oneDay = oneHour * 24; // 一天的毫秒数
+const oneWeek = oneDay * 7; // 一星期的毫秒数
+const oneMonth = oneDay * 30; // 一个月的毫秒数
+
+/**
+ * 按天数减少
+ *
+ * @param days 要减少的天数
+ */
+Date.prototype.minusDays = function (days) {
+    return this.minusMillis(oneDay * days);
+};
+
+/**
+ * 按天数增加
+ *
+ * @param days 要增加的天数
+ */
+Date.prototype.plusDays = function (days) {
+    return this.plusMillis(oneDay * days);
+};
+
+/**
+ * 按小时减少
+ *
+ * @param hours 要减少的小时数
+ */
+Date.prototype.minusHours = function (hours) {
+    return this.minusMillis(oneHour * hours);
+};
+
+/**
+ * 按小时增加
+ *
+ * @param hours 要增加的小时数
+ */
+Date.prototype.plusHours = function (hours) {
+    return this.plusMillis(oneHour * hours);
+};
+
+/**
+ * 按分钟减少
+ *
+ * @param minutes 要减少的分钟数
+ */
+Date.prototype.minusMinutes = function (minutes) {
+    return this.minusMillis(oneMinute * minutes);
+};
+
+/**
+ * 按分钟增加
+ *
+ * @param minutes 要增加的分钟数
+ */
+Date.prototype.plusMinutes = function (minutes) {
+    return this.plusMillis(oneMinute * minutes);
+};
+
+/**
+ * 按毫秒减少
+ *
+ * @param millis 要减少的毫秒数
+ */
+Date.prototype.minusMillis = function(millis) {
+    let time = this.getTime() - millis;
+    let newDate = new Date();
+    newDate.setTime(time);
+    return newDate;
+};
+
+/**
+ * 按毫秒增加
+ *
+ * @param millis 要增加的毫秒数
+ */
+Date.prototype.plusMillis = function(millis) {
+    let time = this.getTime() + millis;
+    let newDate = new Date();
+    newDate.setTime(time);
+    return newDate;
+};
+
+/**
+ * 设置时间为当天的 00:00:00.000
+ */
+Date.prototype.setMinTime = function () {
+    this.setHours(0);
+    this.setMinutes(0);
+    this.setSeconds(0);
+    this.setMilliseconds(0);
+    return this;
+};
+
+/**
+ * 设置时间为当天的 23:59:59.999
+ */
+Date.prototype.setMaxTime = function () {
+    this.setHours(23);
+    this.setMinutes(59);
+    this.setSeconds(59);
+    this.setMilliseconds(999);
+    return this;
+};
+
+/**
+ * 格式化日期
+ */
+Date.prototype.formatDate = function () {
+    return this.getFullYear() + "-" + addZero(this.getMonth() + 1) + "-" + addZero(this.getDate());
+};
+
+/**
+ * 格式化时间
+ */
+Date.prototype.formatTime = function () {
+    return addZero(this.getHours()) + ":" + addZero(this.getMinutes()) + ":" + addZero(this.getSeconds());
+};
+
+/**
+ * 格式化日期加时间
+ *
+ * @param split 日期和时间之间的分隔符，默认是一个空格
+ */
+Date.prototype.formatDateTime = function (split = ' ') {
+    return this.formatDate() + split + this.formatTime();
+};
+
+class DateUtil {
+
+    // 字符串转 Date 对象
+    static parseDate(str) {
+        return new Date(str.replace(/-/g, '/'));
+    }
+
+    static formatMillis(millis) {
+        return moment(millis).format('YYYY-M-D H:m:s')
+    }
+
+    static firstDayOfMonth() {
+        const date = new Date();
+        date.setDate(1);
+        date.setMinTime();
+        return date;
+    }
+}
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