frontend/src/utils.js

134 lines
3.4 KiB
JavaScript

/* 去重 */
export function deWeightThree(data, key) {
let map = new Map()
for (let item of data) {
if (!map.has(item[key])) {
map.set(item[key], item)
}
}
return [...map.values()]
}
/* uuid生成器 */
export function uuid(len, radix) {
var chars =
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
var uuid = [],
i
radix = radix || chars.length
if (len) {
// Compact form
for (i = 0; i < len; i++) uuid[i] = chars[0 | (Math.random() * radix)]
} else {
// rfc4122, version 4 form
var r
// rfc4122 requires these characters
uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'
uuid[14] = '4'
// Fill in random data. At i==19 set the high bits of clock sequence as
// per rfc4122, sec. 4.1.5
for (i = 0; i < 36; i++) {
if (!uuid[i]) {
r = 0 | (Math.random() * 16)
uuid[i] = chars[i == 19 ? (r & 0x3) | 0x8 : r]
}
}
}
return uuid.join('')
}
//计算两个时间差 返回天
export function timeDiff(begin_time, end_time) {
//年月日时分秒转换为时间戳
let beginTime = new Date(begin_time).getTime() / 1000
let endTime = new Date(end_time).getTime() / 1000
var starttime = ''
var endtime = ''
if (beginTime < endTime) {
starttime = beginTime
endtime = endTime
} else {
starttime = endTime
endtime = beginTime
}
//计算天数
var timediff = endtime - starttime
var days = parseInt(timediff / 86400)
//计算小时数
var remain = timediff % 86400
var hours = parseInt(remain / 3600)
//计算分钟数
var remain = remain % 3600
var mins = parseInt(remain / 60)
var res = Number(days + 1)
return res
}
export function getNowTime() {
var now = new Date()
var year = now.getFullYear()
var month =
now.getMonth() + 1 <= 9 ? '0' + (now.getMonth() + 1) : now.getMonth() + 1
var day = now.getDate() <= 9 ? '0' + now.getDate() : now.getDate()
var tt = now.getHours() <= 9 ? '0' + now.getHours() : now.getHours()
var mm = now.getMinutes() <= 9 ? '0' + now.getMinutes() : now.getMinutes()
var ss = now.getSeconds() <= 9 ? '0' + now.getSeconds() : now.getSeconds()
let datelist = [year, month, day, tt, mm, ss]
return datelist.join('')
}
/* 周天排序 */
export function sortWeeks(weeks) {
const staticWeeks = [
{ id: 1, name: '周一' },
{ id: 2, name: '周二' },
{ id: 3, name: '周三' },
{ id: 4, name: '周四' },
{ id: 5, name: '周五' },
{ id: 6, name: '周六' },
{ id: 7, name: '周日' }
]
var _weeks = weeks
.map((item) => staticWeeks.filter((item1) => item1.name === item))
.flat(Infinity)
.sort((a, b) => a.id - b.id)
//将weeks清空并将排序好的值赋给weeks
const weeksData = []
if (isContinuityNum(_weeks.map((item) => item.id)) && _weeks.length > 1) {
weeksData.push(`${_weeks[0].name}${_weeks.slice(-1)[0].name}`)
} else {
for (var i = 0; i < _weeks.length; i++) {
weeksData.push(_weeks[i].name)
}
}
return weeksData
}
//判断一串数字是否是连续的
function isContinuityNum(num) {
let array = []
if (num instanceof Array) {
array = [...num]
} else {
array = Array.from(num.toString()) //转换为数组
}
var i = array[0]
var isContinuation = true
for (var e in array) {
if (array[e] != i) {
isContinuation = false
break
}
i++
}
return isContinuation
}