在vue中封装方法以及多处引用该方法详解

#例如网络请求
var _this = this;
 this.api.userInfo({
 token: ''
 }
 
#通用工具
_this.utils.showBoxFunNot("是否退出登陆", function() {
 console.log("确定")
 _this.api.logOut({}, function(data) {
 _this.utils.setCacheValue('token', '')
 uni.redirectTo({
 url: '/pages/LogIn/LogIn'
 });
 })
 })

var utils = {
 function_chk: function(f) {
 try {
 var fn = eval(f);
 if (typeof(fn) === 'function') {
 return true;
 } else {
 return false;
 }
 } catch (e) {

 }
 return false;
 },
 showBox: function(msg) {
 uni.showModal({
 title: "错误提示",
 content: "" + msg,
 showCancel: false,
 confirmText: "确定"
 })
 },
 showBoxFun: function(msg, fun) {
 uni.showModal({
 title: "提示",
 content: "" + msg,
 showCancel: false,
 confirmText: "确定",
 success: (res) => {
 fun(res)
 }
 })

 },
 showBoxFunNot: function(msg, fun, cancel) {
 var _this = this
 uni.showModal({
 title: "提示",
 content: "" + msg,
 confirmText: "确定",
 cancelText: "取消",
 success: (res) => {
 if (res.confirm) { //取消
 if (_this.function_chk(fun)) {
 fun(res)
 }
 } else if (res.cancel) { //确定
 if (_this.function_chk(cancel)) {
 cancel(res)
 }
 }
 },
 can: (err) => {

 }
 })

 },
 notNull: function(obj, msg = '参数不能为空') {
 var keys = Object.keys(obj);
 console.log(keys)
 for (var i in keys) {
 var keyName = keys[i]
 console.log(keys[i])
 var value = obj[keyName]
 if (value == '') {
 console.log("为空的参数：",keyName)
 this.showBox(msg)
 return true;
 }
 console.log(value)
 }
 return false;
 },
 getCacheValue: function(key) {
 var value = '';
 try {
 value = uni.getStorageSync(key);
 } catch (e) {

 }
 return value;
 },
 setCacheValue: function(key, value) {
 try {
 value = uni.setStorageSync(key, value);
 } catch (e) {

 }
 }
}
export default utils

import utils from 'common/utils.js';
import api from 'common/api.js';

Vue.config.productionTip = false
Vue.prototype.utils = utils
Vue.prototype.api = api