weapp_group/utils/util.js

/**
 * @param {*} date
 * @returns 2019/08/10 12:12:12
 */
export const formatTime = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

/**
 * 版本号比较
 * https://developers.weixin.qq.com/miniprogram/dev/framework/compatibility.html
 */
export const compareVersion = function (v1, v2) {
  v1 = v1.split('.')
  v2 = v2.split('.')
  const len = Math.max(v1.length, v2.length)

  while (v1.length < len) {
    v1.push('0')
  }
  while (v2.length < len) {
    v2.push('0')
  }

  for (let i = 0; i < len; i++) {
    const num1 = parseInt(v1[i])
    const num2 = parseInt(v2[i])

    if (num1 > num2) {
      return 1
    } else if (num1 < num2) {
      return -1
    }
  }

  return 0
}

// 由于wx.getStorageSync有一定概率取不到值，若取不到再取一次
export const getStorageSync = key => {
  try {
    let value = wx.getStorageSync(key)
    if (!value) {
      value = wx.getStorageSync(key)
    }
    return value || ''
  } catch (e) {
    return ''
  }
}

export const setStorageSync = (key, value) => {
  if (key) {
    try {
      wx.setStorageSync(key, isUndef(value) ? '' : value)
    } catch (e) {
      // Do something when catch error
    }
  }
}

export const removeStorageSync = key => {
  if (key) {
    try {
      wx.removeStorageSync(key)
    } catch (e) {
      // Do something when catch error
    }
  }
}

export const clearStorageSync = () => {
  try {
    wx.clearStorageSync()
  } catch (e) {
    // Do something when catch error
  }
}

// 获取用户登录信息
export const getLoginUserInfo = () => {
  return getStorageSync('USERINFO')
}

export const showToast = obj => {
  /*wx.showToast*/
  if (!obj || !obj.title) {
    return console.warn('title is required!')
  }
  try {
    obj.icon = obj.icon || 'none'
    obj.duration = obj.duration || 3000
    obj.mask = obj.mask || false
    wx.showToast(obj)
  } catch (e) {
    // Do something when catch error
  }
}

export const showModal = obj => {
  if (!obj || !obj.content) {
    return console.warn('content is required!')
  }
  try {
    wx.showModal({
      title: obj.title || '',
      content: obj.content || '',
      showCancel: obj.showCancel ? true : false,
      cancelText: obj.cancelText || '取消',
      confirmText: obj.confirmText || '确定',
      success: function (res) {
        if (obj.success) obj.success(res)
      }
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const showLoading = obj => {
  if (!obj || !obj.title) {
    return console.warn('title is required!')
  }
  try {
    wx.showLoading({
      title: obj.title,
      mask: obj.mask || false,
      success: function (res) {
        if (obj.success) obj.success(res)
      }
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const hideLoading = obj => {
  try {
    wx.hideLoading({
      success: function (res) {
        if (obj && obj.success) obj.success(res)
      }
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const showActionSheet = function (obj) {
  try {
    wx.showActionSheet({
      itemList: obj.itemList,
      itemColor: obj.itemColor || '#000',
      success(res) {
        if (obj.success) obj.success(res.tapIndex)
      },
      fail(res) {
        if (obj.fail) obj.fail(res)
      }
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const chooseImage = function (obj) {
  if (!obj) return
  try {
    wx.chooseImage({
      count: obj.count || 1,
      sizeType: obj.sizeType || ['original', 'compressed'],
      sourceType: obj.sourceType || ['album', 'camera'],
      success(res) {
        // tempFilePath可以作为img标签的src属性显示图片
        const tempFilePaths = res.tempFilePaths
        if (obj.success) obj.success(tempFilePaths)
      }
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const reLaunch = function (path) {
  try {
    wx.reLaunch({
      url: path
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const redirectTo = function (path) {
  try {
    wx.redirectTo({
      url: path
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const navigateTo = function (path) {
  try {
    wx.navigateTo({
      url: path
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const navigateBack = function (delta) {
  try {
    wx.navigateBack({
      delta: delta || 1
    })
  } catch (e) {
    // Do something when catch error
  }
}

export const promisify = fun => {
  /* function使用转成Promise形式 */
  return (options, ...params) => {
    return new Promise((resolve, reject) => {
      const extras = {
        success: resolve,
        fail: reject
      }
      fun({
          ...options,
          ...extras
        },
        ...params
      )
    })
  }
}

export const filterEmoji = str => {
  /*过滤表情*/
  if (str) {
    return str.replace(/\uD83C[\uDF00-\uDFFF]|\uD83D[\uDC00-\uDE4F]/g, '')
  }
  return ''
}

export const isUndef = val => {
  return val === undefined || val === null
}

export const isDef = val => {
  return val !== undefined && val !== null
}

export const deepClone = obj => {
  /*深度克隆对象*/
  if (null === obj || 'object' !== typeof obj) {
    return obj
  }
  let clone
  if (obj instanceof Date) {
    clone = new Date()
    clone.setTime(obj.getTime())
    return clone
  }
  if (obj instanceof Array) {
    clone = []
    let i,
      n = obj.length
    for (i = 0; i < n; i++) {
      clone[i] = util.deepClone(obj[i])
    }
    return clone
  }
  if (obj instanceof Object) {
    clone = {}
    for (let key in obj) {
      if (obj.hasOwnProperty(key)) {
        clone[key] = util.deepClone(obj[key])
      }
    }
    return clone
  }
  throw new Error(`Unable to clone obj! Its type isn't supported.`)
}

export const money = (m, c, w) => {
  /*m:金额c:保留小数位数,只能取值0,1,2w:1返回整个金额,2返回整数部分,3返回小数部分*/
  if (c !== 0 && c !== 1 && c !== 2) {
    console.log('传入保留小数位数参数错误')
    return ''
  }
  if (w !== 1 && w !== 2 && w !== 3) {
    console.log('传入返回类型参数错误')
    return ''
  }

  if (0 === m) {
    /*由于0=false,需特殊处理*/
    return deal('0', '')
  } else {
    if (!m || isNaN(m)) {
      return ''
    }
    m = m.toString()
    if (-1 === m.indexOf('.')) {
      return deal(m, '')
    } else {
      var s_arr = m.split('.')
      return deal(s_arr[0], s_arr[1])
    }
  }

  function deal(p, f) {
    /*p为整数部分*/
    if (0 === c) {
      if (1 === w) {
        return p
      } else if (2 === w) {
        return p
      } else if (3 === w) {
        return ''
      }
    } else if (1 === c) {
      if (0 === f.length) {
        f = '0'
      } else if (f.length >= 2) {
        f = f.substring(0, 1)
      }
      if (1 === w) {
        return p + '.' + f
      } else if (2 === w) {
        return p
      } else if (3 === w) {
        return f
      }
    } else if (2 === c) {
      if (0 === f.length) {
        f = '00'
      } else if (1 === f.length) {
        f = f + '0'
      } else if (f.length >= 3) {
        f = f.substring(0, 2)
      }
      if (1 === w) {
        return p + '.' + f
      } else if (2 === w) {
        return p
      } else if (3 === w) {
        return f
      }
    }
  }
}

// ahex 转 rgba
export const colorToRgba = (color) => {
  let rgba = ''
  color = color.substr(1)
  let colorLen = color.length
  let aValue, rValue, gValue, bValue
  aValue = '0xFF'
  if (colorLen === 6 || colorLen === 8) {
    if (colorLen === 8) {
      aValue = '0x' + color.substr(0, 2)
      color = color.substr(2)
    }
    rValue = '0x' + color.substr(0, 2)
    gValue = '0x' + color.substr(2, 2)
    bValue = '0x' + color.substr(4, 2)

    let alpha = parseInt(aValue) / 255.0
    if (JSON.stringify(alpha).length > 4) {
      //小数点超过三位，四舍五入小数点后两位
      alpha = alpha.toFixed(2)
    }
    rgba =
      'rgba(' +
      parseInt(rValue) +
      ',' +
      parseInt(gValue) +
      ',' +
      parseInt(bValue) +
      ',' +
      alpha +
      ')'
  }
  return rgba
}

export const dateToTimestamp = (date) => {
  // 可以这样做
  var timestamp = new Date(date.replace(/-/g, '/')).valueOf()
  return timestamp
}

export const timestampToDate = (timestamp) => {
  let date = new Date(timestamp * 1000)
  const Y = date.getFullYear() + '-'
  const M =
    (date.getMonth() + 1 < 10 ?
      '0' + (date.getMonth() + 1) :
      date.getMonth() + 1) + '-'
  const D = date.getDate()
  return Y + M + D
}

// 脱敏处理,str脱敏字符串,左边保留字数,右边保留字数,替换字符串*
export const desensitization = (str, begin, end, char) => {
  let len = str.length
  const c = char || '*'
  if (len > 1) {
    if (len <= begin) {
      let leftStr = str.substring(0, 1)
      let s = ''
      try {
        for (let i = 1; i < len; i++) {
          s = s + c
        }
      } catch (error) {
        return str
      }
      s = leftStr + s
      return s
    } else if (len <= end) {
      let leftStr = str.substring(0, begin)
      let rightStr = str.substring(len - 1, len)
      let s = ''
      try {
        for (let i = 0; i < len - begin; i++) {
          s = s + c
        }
      } catch (error) {
        return str
      }
      s = leftStr + s + rightStr
      return s
    } else {
      var leftStr = str.substring(0, begin)
      var rightStr = str.substring(len - end, len)
      let s = ''
      try {
        for (let i = 0; i < len - end - begin; i++) {
          s = s + c
        }
      } catch (error) {
        return str
      }
      s = leftStr + s + rightStr
      return s
    }
  } else {
    return str
  }
}

/**
 * 表单验证
 */
export const validator = {
  /*校验字段合法性rule*/
  checkMobile: s => {
    /*校验手机号格式是否正确*/
    if (s) {
      var rule = /^\d{3,20}$/
      return rule.test(s)
    }
    return false
  },
  checkEmail: s => {
    /*校验邮箱格式是否正确*/
    if (s) {
      var rule = /^(([^<>()\[\]\\.,:\s@"]+(\.[^<>()\[\]\\.,:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
      return rule.test(s)
    }
    return false
  },
  checkPwd: s => {
    /*校验登录密码格式是否正确*/
    if (s) {
      var rule = /^(?=.*[a-zA-Z]+)(?=.*[0-9]+)[a-zA-Z0-9]{8,16}$/
      return rule.test(s)
    }
    return false
  },
  checkCode: s => {
    /*校验短信或邮箱验证码格式是否正确*/
    if (s) {
      var rule = /^\d{6}$/
      return rule.test(s)
    }
    return false
  },
  checkImgCode: s => {
    /*校验图片验证码格式是否正确*/
    if (s) {
      var rule = /^[a-zA-Z]{4}$/
      return rule.test(s)
    }
    return false
  },
  checkNickname: s => {
    /*校验昵称格式是否正确*/
    if (s) {
      var rule = /^[A-Za-z0-9\u4e00-\u9fa5]{2,20}$/
      return rule.test(s)
    }
    return false
  }
}