const isType = function (type) {
return function (arg) {
return Object.prototype.toString.call(arg) === `[object ${type}]`;
};
};
export const isFunction = isType('Function');
export const isObject = isType('Object');
export const isString = isType('String');
export const isArray = isType('Array');
export const isDate = isType('Date');
/**
* 为10以内的数字补0
*/
export function addZero(n) {
if (n >= 10) {
return n + '';
} else if (n < 10 && n >= 0) {
return '0' + n;
} else {
return n;
}
}
// 数组去重
export function uniqueArray(arr) {
return [...new Set(arr)];
}
// 节流
export function throttle(fn, delay = 200) {
let isThrottled = false;
let saveArgs = null;
let saveThis = null;
return function wrapper(...args) {
if (isThrottled) {
saveArgs = args;
saveThis = this;
return;
}
isThrottled = true;
fn.apply(this, args);
setTimeout(() => {
isThrottled = false;
if (saveArgs) {
wrapper.apply(saveThis, saveArgs);
saveArgs = saveThis = null;
}
}, delay);
}
}
// 防抖
export function debounce(fn, delay = 200) {
let timer = null;
return function (...args) {
clearTimeout(timer);
timer = setTimeout(() => {
fn.apply(this, args);
}, delay);
};
}
// 获取页面URL参数
export function getLocationParams(name) {
const pages = getCurrentPages();
const curPage = pages[pages.length - 1];
return name ? curPage.options[name] : curPage.options;
}
export function stringToDate(str) {
// 字符串必需符合以下规则：
// 按照年月日时分秒顺序；
// 至少需指定到日，日与时之间需要加空格；
// 连接符只能是一个字符，只有日的或者最后一个的连接符可以省略。
// 例如如：2018-01-2 00:0:3，2018年2月20日 12时30，2018-2-1。
const reg = /^(\d{1,4})\D(0[^0]|1[012]|[^0])\D(0[^0]|[12]\d|3[01]|[^0])(?:[^\d\s])?(?:\s|$)(?:([01]\d|2[0-3]|[^0])|$)(?:\D|$)(?:([0-5]\d|[^0])|$)(?:\D|$)(?:([0-5]\d|[^0])|$)(?:\D|$)(?:(\d{1,3})|$)\D?$/;
if (!reg.test(str)) {
throw new Error('字符串格式错误');
}
let year = 0, month = 0, day = 0, hours = 0, minutes = 0, seconds = 0, milliseconds = 0;
str.replace(reg, (...arg) => {
year = Number(arg[1]);
month = Number(arg[2]) - 1;
day = Number(arg[3]);
if (arg[4]) {
hours = Number(arg[4]);
}
if (arg[5]) {
minutes = Number(arg[5]);
}
if (arg[6]) {
seconds = Number(arg[6]);
}
if (arg[7]) {
milliseconds = Number(arg[7]);
}
});
return new Date(year, month, day, hours, minutes, seconds, milliseconds);
}
/**
* 将时间转换成字符串
*
* format可选格式：
* yyyy替换年，MM替换月，dd替换天，HH替换时，mm替换分，ss替换秒，都可缺省
* 中间的间隔单位只能使用一个字符，单位都可缺省
* 例如：yyyy年MM月dd日 HH时mm分ss秒，yyyy-MM-dd HH:mm:ss，MM dd HH, yyyyMMdd
*/
export function dateToString(date, format = 'yyyy-MM-dd HH:mm:ss') {
if (!isDate(date)) {
throw new Error("第一个参数请传入Date类型");
}
const reg = /^(y{4})?[^yMdHms]?(M{2})?[^yMdHms]?(d{2})?[^yMdHms]?\s?(H{2})?[^yMdHms]?(m{2})?[^yMdHms]?(s{2})?[^yMdHms]?$/;
if (!reg.test(format)) {
throw new Error("第二个参数请传入yyyy-MM-dd HH:mm:ss格式的字符串");
}
format = format.replace(reg, (...arg) => {
let match = arg[0];
if (arg[1]) {
let year = date.getFullYear();
match = match.replace(arg[1] + "", year + "");
}
if (arg[2]) {
let month = addZero(date.getMonth() + 1);
match = match.replace(arg[2] + "", month);
}
if (arg[3]) {
let day = addZero(date.getDate());
match = match.replace(arg[3] + "", day);
}
if (arg[4]) {
let hour = addZero(date.getHours());
match = match.replace(arg[4] + "", hour);
}
if (arg[5]) {
let min = addZero(date.getMinutes());
match = match.replace(arg[5] + "", min);
}
if (arg[6]) {
let second = addZero(date.getSeconds());
match = match.replace(arg[6] + "", second);
}
return match;
});
return format;
}
/**
* 格式化时间格式字符串
* 字符串规则以及format规则同stringToDate，dateToString函数
*/
export function formatDateString(str, format) {
return dateToString(stringToDate(str), format);
}
export function timeToNow(time) {
const dValue = Date.now() - stringToDate(time).valueOf();
const minutes = dValue / 1000 / 60;
const hour = minutes / 60;
const day = hour / 24;
const month = day / 30;
let val = '';
if (minutes < 1) {
val = "刚刚";
} else if (minutes < 60) {
val = Math.round(minutes) + "分钟前";
} else if (hour < 24) {
val = Math.round(hour) + "小时前";
} else if (month < 1) {
val = Math.round(day) + "天前";
} else {
val = Math.round(month) + "月前";
}
return val;
}
// JS 计算两个时间戳相差年月日时分秒
export function calculateDiffTime(startTime, endTime, type = 3) {
var runTime = parseInt(endTime - startTime)
var year = Math.floor(runTime / 86400 / 365)
runTime = runTime % (86400 * 365)
var month = Math.floor(runTime / 86400 / 30)
runTime = runTime % (86400 * 30)
var day = Math.floor(runTime / 86400)
runTime = runTime % 86400
var hour = Math.floor(runTime / 3600)
runTime = runTime % 3600
var minute = Math.floor(runTime / 60)
runTime = runTime % 60
var second = runTime
if (type === 1) { // 返回相差年数
return year + '年'
} else if (type === 2) { // 返回相差年数月数
return year + '年' + month + '月'
} else if (type === 3) { // 返回相差年数月数天数
if(year < 1) {
return month + '个月' + day + '天'
}
return year + '年' + month + '个月' + day + '天'
} else { // 返回相差年数月数天数时分秒
return year + '年' + month + '月' + day + '日' + hour + '时' + minute + '分' + second + '秒'
}
}
//时间截取日期2021-12-22 13:12:12 截取成为2021-12-12
export function timeToDate(time) {
// let time = time.split('-').join('/');
if (time.indexOf(' ') !== -1) {
return time.slice(0, time.indexOf(' '));
} else {
return time;
}
}
//时间截取日期2021-12-22 13:12:12 截取成为2021-12-12
export function timeToTime(time) {
return time.slice(11, 16);
}
//时间戳格式化 2019-08-26 形式
export function stamp2Date(value) {
var b = new Date(value);
var year = b.getFullYear() + '-';
var month = (b.getMonth() + 1);
var date = b.getDate();
month = month < 10 ? '0' + (b.getMonth() + 1) + '-' : (b.getMonth() + 1) + '-';
date = date < 10 ? '0' + (b.getDate()) : date;
var str = String(year) + String(month) + String(date) + '';
return str;
}
//深拷贝
export function deepCopy(data) {
if (!Array.isArray(data) && !isObject(data)) {
return data;
} else if (Array.isArray(data)) {
return data.map(item => deepCopy(item));
} else if (isObject(data)) {
let ret = {};
Object.keys(data).forEach(key => {
ret[key] = deepCopy(data[key]);
});
return ret;
}
}
//去除字符串前后空格
function Trim(str){
if (!String.prototype.trim){
/*---------------------------------------
* 清除字符串多余符号
*---------------------------------------*/
String.prototype.trim = function () {
return this.replace(/(^[\s\n\t]+|[\s\n\t]+$)/g, "");
}
}
return str.trim();
}
/**
* 生成一个唯一的字符串ID，每次执行结果必定不一样
*/
export function getUid() {
const random = "0123456789abcdefghijklmnopqrstuvwxyz";
let str = "";
for (let i = 0; i < 4; i++) {
str += random[getRandom(0, 35)];
}
return new Date().valueOf() + str;
}
/**
* 生成 n - m 之间的随机数
*/
export function getRandom(n, m) {
return Math.floor(Math.random() * (m - n + 1) + n);
}
export function getDateTime(value) {
let time = new Date(value);
let year = time.getFullYear();
let month = (time.getMonth()+1);
let date = time.getDate();
let hour = time.getHours();
let minute = time.getMinutes();
let second = time.getSeconds();
month = month < 10 ? '0'+ month : month;
date = date < 10 ? '0'+ date : date;
hour = hour < 10 ? '0'+ hour + ":" : hour + ":";
minute = minute < 10 ? '0'+ minute : minute;
// second = second < 10 ? '0'+ second : second;
let str1 = String(year)+String(month)+String(date);
let str2 = String(hour) + String(minute);
return {
str1,
str2
};
}
//获取当前时区
export function getCurrentZone() {
var timezone = new Date().getTimezoneOffset() / 60 * -1;//获取时区; //目标时区时间，东八区 东时区正数 西市区负数
return timezone;
}
//获取当前时区名称
export function getZoneName() {
var tmSummer = new Date(Date.UTC(2005, 6, 30, 0, 0, 0, 0));
var so = -1 * tmSummer.getTimezoneOffset();
var tmWinter = new Date(Date.UTC(2005, 12, 30, 0, 0, 0, 0));
var wo = -1 * tmWinter.getTimezoneOffset();
console.log(so + " " + wo);
if (-660 == so && -660 == wo) return 'Pacific/Midway';
if (-600 == so && -600 == wo) return 'Pacific/Tahiti';
if (-570 == so && -570 == wo) return 'Pacific/Marquesas';
if (-540 == so && -600 == wo) return 'America/Adak';
if (-540 == so && -540 == wo) return 'Pacific/Gambier';
if (-480 == so && -540 == wo) return 'US/Alaska';
if (-480 == so && -480 == wo) return 'Pacific/Pitcairn';
if (-420 == so && -480 == wo) return 'US/Pacific';
if (-420 == so && -420 == wo) return 'US/Arizona';
if (-360 == so && -420 == wo) return 'US/Mountain';
if (-360 == so && -360 == wo) return 'America/Guatemala';
if (-360 == so && -300 == wo) return 'Pacific/Easter';
if (-300 == so && -360 == wo) return 'US/Central';
if (-300 == so && -300 == wo) return 'America/Bogota';
if (-240 == so && -300 == wo) return 'US/Eastern';
if (-240 == so && -240 == wo) return 'America/Caracas';
if (-240 == so && -180 == wo) return 'America/Santiago';
if (-180 == so && -240 == wo) return 'Canada/Atlantic';
if (-180 == so && -180 == wo) return 'America/Montevideo';
if (-180 == so && -120 == wo) return 'America/Sao_Paulo';
if (-150 == so && -210 == wo) return 'America/St_Johns';
if (-120 == so && -180 == wo) return 'America/Godthab';
if (-120 == so && -120 == wo) return 'America/Noronha';
if (-60 == so && -60 == wo) return 'Atlantic/Cape_Verde';
if (0 == so && -60 == wo) return 'Atlantic/Azores';
if (0 == so && 0 == wo) return 'Africa/Casablanca';
if (60 == so && 0 == wo) return 'Europe/London';
if (60 == so && 60 == wo) return 'Africa/Algiers';
if (60 == so && 120 == wo) return 'Africa/Windhoek';
if (120 == so && 60 == wo) return 'Europe/Amsterdam';
if (120 == so && 120 == wo) return 'Africa/Harare';
if (180 == so && 120 == wo) return 'Europe/Athens';
if (180 == so && 180 == wo) return 'Africa/Nairobi';
if (240 == so && 180 == wo) return 'Europe/Moscow';
if (240 == so && 240 == wo) return 'Asia/Dubai';
if (270 == so && 210 == wo) return 'Asia/Tehran';
if (270 == so && 270 == wo) return 'Asia/Kabul';
if (300 == so && 240 == wo) return 'Asia/Baku';
if (300 == so && 300 == wo) return 'Asia/Karachi';
if (330 == so && 330 == wo) return 'Asia/Calcutta';
if (345 == so && 345 == wo) return 'Asia/Katmandu';
if (360 == so && 300 == wo) return 'Asia/Yekaterinburg';
if (360 == so && 360 == wo) return 'Asia/Colombo';
if (390 == so && 390 == wo) return 'Asia/Rangoon';
if (420 == so && 360 == wo) return 'Asia/Almaty';
if (420 == so && 420 == wo) return 'Asia/Bangkok';
if (480 == so && 420 == wo) return 'Asia/Krasnoyarsk';
if (480 == so && 480 == wo) return 'Asia/Shanghai';//return 'Australia/Perth';
if (540 == so && 480 == wo) return 'Asia/Irkutsk';
if (540 == so && 540 == wo) return 'Asia/Tokyo';
if (570 == so && 570 == wo) return 'Australia/Darwin';
if (570 == so && 630 == wo) return 'Australia/Adelaide';
if (600 == so && 540 == wo) return 'Asia/Yakutsk';
if (600 == so && 600 == wo) return 'Australia/Brisbane';
if (600 == so && 660 == wo) return 'Australia/Sydney';
if (630 == so && 660 == wo) return 'Australia/Lord_Howe';
if (660 == so && 600 == wo) return 'Asia/Vladivostok';
if (660 == so && 660 == wo) return 'Pacific/Guadalcanal';
if (690 == so && 690 == wo) return 'Pacific/Norfolk';
if (720 == so && 660 == wo) return 'Asia/Magadan';
if (720 == so && 720 == wo) return 'Pacific/Fiji';
if (720 == so && 780 == wo) return 'Pacific/Auckland';
if (765 == so && 825 == wo) return 'Pacific/Chatham';
if (780 == so && 780 == wo) return 'Pacific/Enderbury'
if (840 == so && 840 == wo) return 'Pacific/Kiritimati';
return 'Asia/Shanghai';
}
