常见方法的使用

// import parseTime, formatTime and set to filter

/**

• Show plural label if time is plural number
• @param {number} time
• @param {string} label
• @return {string}
  */
  function pluralize(time, label) {
  if (time === 1) {
  return time + label
  }
  return time + label + 's'
  }

/**

• @param {number} time
  */
  export function timeAgo(time) {
  const between = Date.now() / 1000 - Number(time)
  if (between < 3600) {
  return pluralize((between / 60), ' minute')
  } else if (between < 86400) {
  return pluralize((between / 3600), ' hour')
  } else {
  return pluralize(~~(between / 86400), ' day')
  }
  }

/**

• Number formatting
• like 10000 => 10k
• @param {number} num
• @param {number} digits
  */
  export function numberFormatter(num, digits) {
  const si = [
  { value: 1E18, symbol: 'E' },
  { value: 1E15, symbol: 'P' },
  { value: 1E12, symbol: 'T' },
  { value: 1E9, symbol: 'G' },
  { value: 1E6, symbol: 'M' },
  { value: 1E3, symbol: 'k' }
  ]
  for (let i = 0; i < si.length; i++) {
  if (num >= si[i].value) {
  return (num / si[i].value).toFixed(digits).replace(/.0+/, '$1') + si[i].symbol
  }
  }
  return num.toString()
  }

/**

• 10000 => "10,000"
• @param {number} num
  */
  export function toThousandFilter(num) {
  return (+num || 0).toString().replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ','))
  }

/**

• Upper case first char
• @param {String} string
  */
  export function uppercaseFirst(string) {
  return string.charAt(0).toUpperCase() + string.slice(1)
  }

export function parseTime(time, cFormat) {
if (arguments.length === 0) {
return null
}

if ((time + '').length === 10) {
time = +time * 1000
}

const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
let date
if (typeof time === 'object') {
date = time
} else {
date = new Date(parseInt(time))
}
const formatObj = {
y: date.getFullYear(),
m: date.getMonth() + 1,
d: date.getDate(),
h: date.getHours(),
i: date.getMinutes(),
s: date.getSeconds(),
a: date.getDay()
}
const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
let value = formatObj[key]
if (key === 'a') {
return ['一', '二', '三', '四', '五', '六', '日'][value - 1]
}
if (result.length > 0 && value < 10) {
value = '0' + value
}
return value || 0
})
return timeStr
}

export function formatTime(time, option) {
time = +time * 1000
const d = new Date(time)
const now = Date.now()

const diff = (now - d) / 1000

if (diff < 30) {
return '刚刚'
} else if (diff < 3600) {
// less 1 hour
return Math.ceil(diff / 60) + '分钟前'
} else if (diff < 3600 * 24) {
return Math.ceil(diff / 3600) + '小时前'
} else if (diff < 3600 * 24 * 2) {
return '1天前'
}
if (option) {
return parseTime(time, option)
} else {
return (
d.getMonth() +
1 +
'月' +
d.getDate() +
'日' +
d.getHours() +
'时' +
d.getMinutes() +
'分'
)
}
}
export function getNowFormatDate() {
var date = new Date()
var seperator1 = '-'
var year = date.getFullYear()
var month = date.getMonth() + 1
var strDate = date.getDate()
if (month >= 1 && month <= 9) {
month = '0' + month
}
if (strDate >= 0 && strDate <= 9) {
strDate = '0' + strDate
}
var currentdate = year + seperator1 + month + seperator1 + strDate
return currentdate
}
/* 数字 格式化 */
export function nFormatter(num, digits) {
const si = [{
value: 1e18,
symbol: 'E'
},
{
value: 1e15,
symbol: 'P'
},
{
value: 1e12,
symbol: 'T'
},
{
value: 1e9,
symbol: 'G'
},
{
value: 1e6,
symbol: 'M'
},
{
value: 1e3,
symbol: 'k'
}
]
for (let i = 0; i < si.length; i++) {
if (num >= si[i].value) {
return (
(num / si[i].value + 0.1)
.toFixed(digits)
.replace(/.0+/, '$1') + si[i].symbol
)
}
}
return num.toString()
}

export function html2Text(val) {
const div = document.createElement('div')
div.innerHTML = val
return div.textContent || div.innerText
}

export function toThousandslsFilter(num) {
return (+num || 0)
.toString()
.replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+/
if (reg.test(value)) {
callback()
} else {
return callback(new Error('请输入正确的手机号'))
}
}
}
export function checkPassword(rule, value, callback) {
if (!value) {
return callback(new Error('密码不能为空'))
} else if (value.length < 6) {
callback(new Error('请至少输入 6 个字符。请不要使用容易被猜到的密码'))
} else {
callback()
}
}
// 手机号证验证
export function checkTel(value, callback) {
var reg = /^1[3|4|5|7|8][0-9]\d{8}/
return reg.test(value)
}
// 邮箱验证
export function checkEmail(rule, value, callback) {
if (!value) {
return callback(new Error('邮箱不能为空'))
} else {
var reg = /^[A-Za-zd]+([-_.][A-Za-zd]+)*@([A-Za-zd]+[-.])+[A-Za-zd]{2,5}/g
return reg.test(value)
}
// qq验证
export function checkQq(value, callback) {
var reg = /^[0-9]+$/g
return reg.test(value)
}
// 银行卡号
export function formatBankNo(BankNo, callback) {
var strBin = '10,18,30,35,37,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,58,60,62,65,68,69,84,87,88,94,95,98,99'
return strBin
}
export function getStrleng(str, max) {
var myLen = 0
for (var i = 0; i < str.length && myLen <= max * 2; i++) {
if (str.charCodeAt(i) > 0 && str.charCodeAt(i) < 128) {
myLen++
} else myLen += 2
}
return myLen
}
// 上传图片格式控制
export function updatedImg(file, obj, callback, func) {
if (file.size < 10100000) {
var fileName = file.name
var suffix = fileName
.substring(fileName.lastIndexOf('.') + 1)
.toUpperCase()
if (
suffix === 'PDF' ||
suffix === 'JPG' ||
suffix === 'JPEG' ||
suffix === 'PNG' ||
suffix === 'GIF'
) {
return true
} else {
var tipType = '文件类型不正确,请重新上传'
callback(tipType)
return false
}
} else {
var tipSize = '文件大小超过5M,请重新上传'
callback(tipSize)
return false
}
}
// 上传文档格式控制
export function updatedFile(file, obj, callback, func) {
if (file.size < 10100000) {
var fileName = file.name
var suffix = fileName
.substring(fileName.lastIndexOf('.') + 1)
.toUpperCase()
if (
suffix === 'DOC' ||
suffix === 'DOCX' ||
suffix === 'XLS' ||
suffix === 'XLSX' ||
suffix === 'PDF' ||
suffix === 'ZIP' ||
suffix === 'RAR'
) {
return true
} else {
var tipType = '文件类型不正确,请重新上传'
callback(tipType)
return false
}
} else {
var tipSize = '文件大小超过5M,请重新上传'
callback(tipSize)
return false
}
}
export function importFile(file, obj, callback, func) {
if (file.size < 10100000) {
var fileName = file.name
var suffix = fileName
.substring(fileName.lastIndexOf('.') + 1)
.toUpperCase()
if (
suffix === 'XLS' ||
suffix === 'XLSX'
) {
return true
} else {
var tipType = '文件类型不正确,请重新上传'
callback(tipType)
return false
}
} else {
var tipSize = '文件大小超过10M,请重新上传'
callback(tipSize)
return false
}
}
export function minHeight(resfile) {
return document.body.clientHeight - 180 + 'px'
}

export function formatDate(date, fmt = 'yyyy-MM-dd') {
if (!(date instanceof Array)) {
date = new Date(date)
}
if (/(y+)/.test(fmt)) {
fmt = fmt.replace(RegExp.1.length))
}
const o = {
'M+': date.getMonth() + 1,
'd+': date.getDate(),
'h+': date.getHours(),
'm+': date.getMinutes(),
's+': date.getSeconds()
}
for (const k in o) {
if (new RegExp((${k})).test(fmt)) {
const str = o[k] + ''
fmt = fmt.replace(RegExp.1.length === 1) ? str : padLeftZero(str))
}
}
return fmt
}

function padLeftZero(str) {
return ('00' + str).substr(str.length)
}
export function getBlob(response) {
const blob = new Blob([response.data], {
type: 'application/vnd.ms-excel'
})
const link = document.createElement('a')
link.href = window.URL.createObjectURL(blob)
var filename = decodeURI(response.headers.filename)
// link.download = filename + '.xls'
link.download = filename
link.click()
}
// 图片 blob 流转化为可用 src
export function imgHandle(obj) {
return window.URL.createObjectURL(obj)
}