Initial commit

web/src/utils/utils.js

@@ -0,0 +1,145 @@
+import React from "react";
+import {Link} from "react-router-dom";
+
+export const sleep = function (ms) {
+    return new Promise(resolve => setTimeout(resolve, ms))
+}
+
+export const getToken = function () {
+    return localStorage.getItem('X-Auth-Token');
+}
+
+export const getHeaders = function () {
+    return {'X-Auth-Token': getToken()};
+}
+
+export const itemRender = function (route, params, routes, paths) {
+    const last = routes.indexOf(route) === routes.length - 1;
+    return last ? (
+        <span>{route.breadcrumbName}</span>
+    ) : (
+        <Link to={paths.join('/')}>{route.breadcrumbName}</Link>
+    );
+}
+
+export const formatDate = function (time, format) {
+    let date = new Date(time);
+    let o = {
+        "M+": date.getMonth() + 1,
+        "d+": date.getDate(),
+        "h+": date.getHours(),
+        "m+": date.getMinutes(),
+        "s+": date.getSeconds(),
+        "q+": Math.floor((date.getMonth() + 3) / 3), //quarter
+        "S": date.getMilliseconds() //millisecond
+    };
+    if (/(y+)/.test(format)) {
+        format = format.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
+    }
+    for (let k in o) {
+        if (new RegExp("(" + k + ")").test(format)) {
+            format = format.replace(RegExp.$1, RegExp.$1.length === 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
+        }
+    }
+    return format;
+};
+
+export const isLeapYear = function (year) {
+    return (year % 4 === 0 && year % 100 !== 0) || (year % 100 === 0 && year % 400 === 0);
+};
+
+export const groupBy = (list, fn) => {
+    const groups = {};
+
+    list.forEach(x => {
+        let groupKey = fn(x).toString();
+        groups[groupKey] = groups[groupKey] || [];
+        groups[groupKey].push(x);
+    });
+
+    return groups;
+};
+
+export const cloneObj = (obj, ignoreFields) => {
+    let str, newObj = obj.constructor === Array ? [] : {};
+    if (typeof obj !== 'object') {
+        return;
+    } else if (window.JSON) {
+        str = JSON.stringify(obj);
+        newObj = JSON.parse(str);
+    } else {
+        for (const i in obj) {
+            newObj[i] = typeof obj[i] === 'object' ? cloneObj(obj[i]) : obj[i];
+        }
+    }
+    return newObj;
+};
+
+export function download(url) {
+    let aElement = document.createElement('a');
+    aElement.setAttribute('download', '');
+    aElement.setAttribute('target', '_blank');
+    aElement.setAttribute('href', url);
+    aElement.click();
+}
+
+export function differTime(start, end) {
+    //总秒数
+    let millisecond = Math.floor((end.getTime() - start.getTime()) / 1000);
+
+    //总天数
+    let allDay = Math.floor(millisecond / (24 * 60 * 60));
+
+    //注意同getYear的区别
+    let startYear = start.getFullYear();
+    let currentYear = end.getFullYear();
+
+    //闰年个数
+    let leapYear = 0;
+    for (let i = startYear; i < currentYear; i++) {
+        if (isLeapYear(i)) {
+            leapYear++;
+        }
+    }
+
+    //年数
+    const year = Math.floor((allDay - leapYear * 366) / 365 + leapYear);
+
+    //天数
+    let day;
+    if (allDay > 366) {
+        day = (allDay - leapYear * 366) % 365;
+    } else {
+        day = allDay;
+    }
+    //取余数(秒)
+    const remainder = millisecond % (24 * 60 * 60);
+    //小时数
+    const hour = Math.floor(remainder / (60 * 60));
+    //分钟数
+    const minute = Math.floor(remainder % (60 * 60) / 60);
+    //秒数
+    const second = remainder - hour * 60 * 60 - minute * 60;
+
+    let show = '';
+    if (year > 0) {
+        show += year + '年';
+    }
+
+    if (day > 0) {
+        show += day + '天';
+    }
+
+    if (hour > 0) {
+        show += hour + '小时';
+    }
+
+    if (minute > 0) {
+        show += minute + '分钟';
+    }
+
+    if (second > 0) {
+        show += second + '秒';
+    }
+    return show;
+}