箭头函数 this arrow function 无this

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions

import wepy from 'wepy'

import util from './util'

import md5 from './md5'

// import tip from './tip'

const networkStatusChangeLog = () => {

  try {

    wx.removeStorageSync('onNetworkStatusChange')

  } catch (e) {

    // Do something when catch error

    console.log(e)

  }

  const log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk'

  wx.setStorageSync('onNetworkStatusChange', log)

}

const isConnected = () => {

  let that = this

  wx.onNetworkStatusChange(function (res) {

    that.networkStatus = res

  })

  if (!this.networkStatus.isConnected) {

    wx.showToast({

      title: '无网络',

      icon: 'loading',

      duration: 2000

    })

    networkStatusChangeLog()

    return false

  }

  return true

}

const appendInfo = () => {

  const API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src'

  const TIMESTAMP = util.getCurrentTime()

  const SIGN = md5.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase())

  const MORE = 'more......'

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  }

}

const wxRequest = async (params = {}, url) => {

  console.log('wxRequest', params)

  const c = await isConnected()

  if (!c) {

    return

  }

  // tip.loading()

  let data = params.query || {}

  const header = params.header || {}

  const isAppend = params.isAppend || false

  if (isAppend) {

    const a = appendInfo()

    for (let k in a) {

      eval('data.' + k + '= a.' + k)

    }

  }

  let res = await wepy.request({

    url: url,

    method: params.method || 'GET',

    data: data,

    header: header

  })

  // tip.loaded()

  console.log('wxRequest', res)

  return res

}

module.exports = {

  wxRequest

}

　　D:\GPUGO\MP\wepy\mpBMCwepy\src\utils\wxRequest.js

wepy build --no-cache

D:\GPUGO\MP\wepy\mpBMCwepy\dist\utils\wxRequest.js

'use strict';

var _wepy = require('./../npm/wepy/lib/wepy.js');

var _wepy2 = _interopRequireDefault(_wepy);

var _util = require('./util.js');

var _util2 = _interopRequireDefault(_util);

var _md = require('./md5.js');

var _md2 = _interopRequireDefault(_md);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

// import tip from './tip'

var networkStatusChangeLog = function networkStatusChangeLog() {

  try {

    wx.removeStorageSync('onNetworkStatusChange');

  } catch (e) {

    // Do something when catch error

    console.log(e);

  }

  var log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk';

  wx.setStorageSync('onNetworkStatusChange', log);

};

var isConnected = function isConnected() {

  var that = undefined;

  wx.onNetworkStatusChange(function (res) {

    that.networkStatus = res;

  });

  if (!undefined.networkStatus.isConnected) {

    wx.showToast({

      title: '无网络',

      icon: 'loading',

      duration: 2000

    });

    networkStatusChangeLog();

    return false;

  }

  return true;

};

var appendInfo = function appendInfo() {

  var API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src';

  var TIMESTAMP = _util2.default.getCurrentTime();

  var SIGN = _md2.default.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase());

  var MORE = 'more......';

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  };

};

var wxRequest = function () {

  var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {

    var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var url = arguments[1];

    var c, data, header, isAppend, a, k, res;

    return regeneratorRuntime.wrap(function _callee$(_context) {

      while (1) {

        switch (_context.prev = _context.next) {

          case 0:

            console.log('wxRequest', params);

            _context.next = 3;

            return isConnected();

          case 3:

            c = _context.sent;

            if (c) {

              _context.next = 6;

              break;

            }

            return _context.abrupt('return');

          case 6:

            // tip.loading()

            data = params.query || {};

            header = params.header || {};

            isAppend = params.isAppend || false;

            if (isAppend) {

              a = appendInfo();

              for (k in a) {

                eval('data.' + k + '= a.' + k);

              }

            }

            _context.next = 12;

            return _wepy2.default.request({

              url: url,

              method: params.method || 'GET',

              data: data,

              header: header

            });

          case 12:

            res = _context.sent;

            // tip.loaded()

            console.log('wxRequest', res);

            return _context.abrupt('return', res);

          case 15:

          case 'end':

            return _context.stop();

        }

      }

    }, _callee, undefined);

  }));

  return function wxRequest() {

    return _ref.apply(this, arguments);

  };

}();

module.exports = {

  wxRequest: wxRequest

};

//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW

　An arrow function expression has a shorter syntax than a function expression and does not have its own this, arguments, super, or new.target. These function expressions are best suited for non-method functions, and they cannot be used as constructors.

'use strict';

var _wepy = require('./../npm/wepy/lib/wepy.js');

var _wepy2 = _interopRequireDefault(_wepy);

var _util = require('./util.js');

var _util2 = _interopRequireDefault(_util);

var _md = require('./md5.js');

var _md2 = _interopRequireDefault(_md);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

// import tip from './tip'

var networkStatusChangeLog = function networkStatusChangeLog() {

  try {

    wx.removeStorageSync('onNetworkStatusChange');

  } catch (e) {

    // Do something when catch error

    console.log(e);

  }

  var log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk';

  wx.setStorageSync('onNetworkStatusChange', log);

};

var isConnected = function isConnected() {

  var that = this;

  wx.onNetworkStatusChange(function (res) {

    that.networkStatus = res;

  });

  if (!this.networkStatus.isConnected) {

    wx.showToast({

      title: '无网络',

      icon: 'loading',

      duration: 2000

    });

    networkStatusChangeLog();

    return false;

  }

  return true;

};

var appendInfo = function appendInfo() {

  var API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src';

  var TIMESTAMP = _util2.default.getCurrentTime();

  var SIGN = _md2.default.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase());

  var MORE = 'more......';

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  };

};

var wxRequest = function () {

  var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {

    var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var url = arguments[1];

    var c, data, header, isAppend, a, k, res;

    return regeneratorRuntime.wrap(function _callee$(_context) {

      while (1) {

        switch (_context.prev = _context.next) {

          case 0:

            console.log('wxRequest', params);

            _context.next = 3;

            return isConnected();

          case 3:

            c = _context.sent;

            if (c) {

              _context.next = 6;

              break;

            }

            return _context.abrupt('return');

          case 6:

            // tip.loading()

            data = params.query || {};

            header = params.header || {};

            isAppend = params.isAppend || false;

            if (isAppend) {

              a = appendInfo();

              for (k in a) {

                eval('data.' + k + '= a.' + k);

              }

            }

            _context.next = 12;

            return _wepy2.default.request({

              url: url,

              method: params.method || 'GET',

              data: data,

              header: header

            });

          case 12:

            res = _context.sent;

            // tip.loaded()

            console.log('wxRequest', res);

            return _context.abrupt('return', res);

          case 15:

          case 'end':

            return _context.stop();

        }

      }

    }, _callee, undefined);

  }));

  return function wxRequest() {

    return _ref.apply(this, arguments);

  };

}();

module.exports = {

  wxRequest: wxRequest

};

//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW

import wepy from 'wepy'

import util from './util'

import md5 from './md5'

// import tip from './tip'

const networkStatusChangeLog = () => {

  try {

    wx.removeStorageSync('onNetworkStatusChange')

  } catch (e) {

    // Do something when catch error

    console.log(e)

  }

  const log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk'

  wx.setStorageSync('onNetworkStatusChange', log)

}

const isConnected = function () {

  let that = this

  wx.onNetworkStatusChange(function (res) {

    that.networkStatus = res

  })

  if (!this.networkStatus.isConnected) {

    wx.showToast({

      title: '无网络',

      icon: 'loading',

      duration: 2000

    })

    networkStatusChangeLog()

    return false

  }

  return true

}

const appendInfo = () => {

  const API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src'

  const TIMESTAMP = util.getCurrentTime()

  const SIGN = md5.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase())

  const MORE = 'more......'

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  }

}

const wxRequest = async (params = {}, url) => {

  console.log('wxRequest', params)

  const c = await isConnected()

  if (!c) {

    return

  }

  // tip.loading()

  let data = params.query || {}

  const header = params.header || {}

  const isAppend = params.isAppend || false

  if (isAppend) {

    const a = appendInfo()

    for (let k in a) {

      eval('data.' + k + '= a.' + k)

    }

  }

  let res = await wepy.request({

    url: url,

    method: params.method || 'GET',

    data: data,

    header: header

  })

  // tip.loaded()

  console.log('wxRequest', res)

  return res

}

module.exports = {

  wxRequest

}

import wepy from 'wepy'

import util from './util'

import md5 from './md5'

// import tip from './tip'

const networkStatusChangeLog = () => {

  try {

    wx.removeStorageSync('onNetworkStatusChange')

  } catch (e) {

    // Do something when catch error

    console.log(e)

  }

  const log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk'

  wx.setStorageSync('onNetworkStatusChange', log)

}

const isConnected = async function () {

  let that = this

  await wx.onNetworkStatusChange(function (res) {

    that.networkStatus = res

  })

  if (!this.networkStatus.isConnected) {

    wx.showToast({

      title: '无网络',

      icon: 'loading',

      duration: 2000

    })

    networkStatusChangeLog()

    return false

  }

  return true

}

const appendInfo = () => {

  const API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src'

  const TIMESTAMP = util.getCurrentTime()

  const SIGN = md5.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase())

  const MORE = 'more......'

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  }

}

const wxRequest = async (params = {}, url) => {

  console.log('wxRequest', params)

  const c = await isConnected()

  if (!c) {

    return

  }

  // tip.loading()

  let data = params.query || {}

  const header = params.header || {}

  const isAppend = params.isAppend || false

  if (isAppend) {

    const a = appendInfo()

    for (let k in a) {

      eval('data.' + k + '= a.' + k)

    }

  }

  let res = await wepy.request({

    url: url,

    method: params.method || 'GET',

    data: data,

    header: header

  })

  // tip.loaded()

  console.log('wxRequest', res)

  return res

}

module.exports = {

  wxRequest

}

'use strict';

var _wepy = require('./../npm/wepy/lib/wepy.js');

var _wepy2 = _interopRequireDefault(_wepy);

var _util = require('./util.js');

var _util2 = _interopRequireDefault(_util);

var _md = require('./md5.js');

var _md2 = _interopRequireDefault(_md);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

// import tip from './tip'

var networkStatusChangeLog = function networkStatusChangeLog() {

  try {

    wx.removeStorageSync('onNetworkStatusChange');

  } catch (e) {

    // Do something when catch error

    console.log(e);

  }

  var log = new Date().toUTCString() + 'BizInfo' + 'uploadWhenOk';

  wx.setStorageSync('onNetworkStatusChange', log);

};

var isConnected = function () {

  var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {

    var that;

    return regeneratorRuntime.wrap(function _callee$(_context) {

      while (1) {

        switch (_context.prev = _context.next) {

          case 0:

            that = this;

            _context.next = 3;

            return wx.onNetworkStatusChange(function (res) {

              that.networkStatus = res;

            });

          case 3:

            if (this.networkStatus.isConnected) {

              _context.next = 7;

              break;

            }

            wx.showToast({

              title: '无网络',

              icon: 'loading',

              duration: 2000

            });

            networkStatusChangeLog();

            return _context.abrupt('return', false);

          case 7:

            return _context.abrupt('return', true);

          case 8:

          case 'end':

            return _context.stop();

        }

      }

    }, _callee, this);

  }));

  return function isConnected() {

    return _ref.apply(this, arguments);

  };

}();

var appendInfo = function appendInfo() {

  var API_SECRET_KEY = 'https://github.com/dyq086/wepy-mall/tree/master/src';

  var TIMESTAMP = _util2.default.getCurrentTime();

  var SIGN = _md2.default.hex_md5((TIMESTAMP + API_SECRET_KEY).toLowerCase());

  var MORE = 'more......';

  return {

    'API_SECRET_KEY': API_SECRET_KEY,

    'TIMESTAMP': TIMESTAMP,

    'SIGN': SIGN,

    'MORE': MORE

  };

};

var wxRequest = function () {

  var _ref2 = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2() {

    var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    var url = arguments[1];

    var c, data, header, isAppend, a, k, res;

    return regeneratorRuntime.wrap(function _callee2$(_context2) {

      while (1) {

        switch (_context2.prev = _context2.next) {

          case 0:

            console.log('wxRequest', params);

            _context2.next = 3;

            return isConnected();

          case 3:

            c = _context2.sent;

            if (c) {

              _context2.next = 6;

              break;

            }

            return _context2.abrupt('return');

          case 6:

            // tip.loading()

            data = params.query || {};

            header = params.header || {};

            isAppend = params.isAppend || false;

            if (isAppend) {

              a = appendInfo();

              for (k in a) {

                eval('data.' + k + '= a.' + k);

              }

            }

            _context2.next = 12;

            return _wepy2.default.request({

              url: url,

              method: params.method || 'GET',

              data: data,

              header: header

            });

          case 12:

            res = _context2.sent;

            // tip.loaded()

            console.log('wxRequest', res);

            return _context2.abrupt('return', res);

          case 15:

          case 'end':

            return _context2.stop();

        }

      }

    }, _callee2, undefined);

  }));

  return function wxRequest() {

    return _ref2.apply(this, arguments);

  };

}();

module.exports = {

  wxRequest: wxRequest

};

//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2V

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