diff --git a/src/module/cacheManager.ts b/src/module/cacheManager.ts
index 3357572..50fb2ff 100644
--- a/src/module/cacheManager.ts
+++ b/src/module/cacheManager.ts
@@ -3,17 +3,19 @@ import { IRequestOption } from "../interface"
 function get(obj: IRequestOption) {
     wx.getStorage({
         key: obj.originUrl,
-        success: function (res) {
+        success (res) {
             if (typeof obj.cache === "function" && obj.cache(res.data)) {
                 if (typeof obj.success === "function") {
                     obj.success(res.data, {isCache: true})
                 }
-            } else if (obj.cache == true) {
+            } else if (obj.cache === true) {
                 if (typeof obj.success === "function") {
                     obj.success(res.data, {isCache: true})
                 }
             }
-            typeof obj.complete === "function" && obj.complete();
+            if(typeof obj.complete === "function") {
+                obj.complete();
+            }
         }
     })
 }
diff --git a/src/module/durationReporter.ts b/src/module/durationReporter.ts
index f2dfa35..8a80f60 100644
--- a/src/module/durationReporter.ts
+++ b/src/module/durationReporter.ts
@@ -7,12 +7,12 @@ function start(obj: IRequestOption | IUploadFileOption) {
 
 function end(obj: IRequestOption | IUploadFileOption) {
     obj._reportEndTime = new Date().getTime();
-    report(<string>obj.report, obj._reportStartTime, obj._reportEndTime);
+    report(obj.report as string, obj._reportStartTime, obj._reportEndTime);
 }
 
-function report(name: string, start: number, end: number) {
+function report(name: string, startTime: number, endTime: number) {
     if (typeof config.reportCGI === "function") {
-        config.reportCGI(name, start, end);
+        config.reportCGI(name, startTime, endTime);
     }
 }
 
diff --git a/src/module/errorHandler.ts b/src/module/errorHandler.ts
index 1f7ba4e..49fe055 100644
--- a/src/module/errorHandler.ts
+++ b/src/module/errorHandler.ts
@@ -12,7 +12,7 @@ function logicError(obj: IRequestOption | IUploadFileOption, res: wx.RequestSucc
     if (typeof obj.fail === "function") {
         obj.fail(res);
     } else {
-        let {title, content} = getErrorMsg(res);
+        const {title, content} = getErrorMsg(res);
         doError(title, content);
     }
 
@@ -50,7 +50,7 @@ function getErrorMsg(res: wx.RequestSuccessCallbackResult | wx.UploadFileSuccess
 
 function doError(title: string, content: string) {
     wx.showModal({
-        title: title,
+        title,
         content: content || "网络或服务异常，请稍后重试",
         showCancel: false
     })
diff --git a/src/module/mockManager.ts b/src/module/mockManager.ts
index 655af72..335b144 100644
--- a/src/module/mockManager.ts
+++ b/src/module/mockManager.ts
@@ -13,8 +13,8 @@ function get(obj: IRequestOption | IUploadFileOption, method: "request" | "uploa
     let data = config.mockJson[obj.url] || config.mockJson[obj.originUrl];
     // deep copy
     data = JSON.parse(JSON.stringify(data));
-    let res = {
-        data: data,
+    const res = {
+        data,
         statusCode: 200
     };
 
diff --git a/src/module/requestHandler.ts b/src/module/requestHandler.ts
index 67abd2a..985a527 100644
--- a/src/module/requestHandler.ts
+++ b/src/module/requestHandler.ts
@@ -11,15 +11,15 @@ import url from '../util/url'
 import { IRequestOption, IUploadFileOption } from "../interface"
 
 // 格式化url
-function format(url: string) {
-    if (url.startsWith('http')) {
-        return url
+function format(originUrl: string) {
+    if (originUrl.startsWith('http')) {
+        return originUrl
     } else {
         let urlPerfix = config.urlPerfix;
         if (typeof config.urlPerfix === "function") {
             urlPerfix = config.urlPerfix()
         }
-        return urlPerfix + url;
+        return urlPerfix + originUrl;
     }
 }
 
@@ -45,8 +45,10 @@ function preDo<T extends IRequestOption | IUploadFileOption>(obj: T): T {
             return ()=> {
                 // TODO 使用Promise方式后，可能不需要这些了
                 loading.hide();
-                // @ts-ignore
-                typeof fn === "function" && fn.apply(this, ...args);
+                if(typeof fn === "function"){
+                    // @ts-ignore
+                    fn.apply(this, ...args);
+                }
             }
         })(obj.complete)
     }
@@ -67,12 +69,12 @@ function initializeRequestObj(obj: IRequestOption) {
     }
 
     if (obj.originUrl !== config.codeToSession.url && status.session) {
-        obj.data = Object.assign({}, obj.data, {[config.sessionName]: status.session})
+        obj.data = {...obj.data as object, [config.sessionName]: status.session};
     }
 
     // 如果有全局参数，则添加
-    let gd = getGlobalData();
-    obj.data = Object.assign({}, gd, obj.data);
+    const gd = getGlobalData();
+    obj.data = {...gd, ...obj.data as object};
 
     obj.method = obj.method || 'GET';
     obj.dataType = obj.dataType || 'json';
@@ -97,12 +99,12 @@ function initializeUploadFileObj(obj: IUploadFileOption) {
     }
 
     if (obj.originUrl !== config.codeToSession.url && status.session) {
-        obj.formData = Object.assign({}, obj.formData, {[config.sessionName]: status.session})
+        obj.formData = {...obj.formData as object, [config.sessionName]: status.session};
     }
 
     // 如果有全局参数，则添加
-    let gd = getGlobalData();
-    obj.formData = Object.assign({}, gd, obj.formData);
+    const gd = getGlobalData();
+    obj.formData = {...gd, ...obj.formData};
 
     // 将登陆态也带在url上
     if (status.session) {
@@ -135,16 +137,18 @@ function doRequest(obj: IRequestOption) {
         method: obj.method,
         header: obj.header || {},
         dataType: obj.dataType || 'json',
-        success: function (res: wx.RequestSuccessCallbackResult) {
+        success(res: wx.RequestSuccessCallbackResult) {
             responseHandler(res, obj, 'request')
         },
-        fail: function (res: wx.GeneralCallbackResult) {
+        fail (res: wx.GeneralCallbackResult) {
             errorHandler.systemError(obj, res);
             console.error(res);
         },
-        complete: function () {
+        complete () {
             obj.count--;
-            typeof obj.complete === "function" && obj.count === 0 && obj.complete();
+            if(typeof obj.complete === "function" && obj.count === 0){
+                obj.complete();
+            }
         }
     })
 }
@@ -157,16 +161,18 @@ function doUploadFile(obj: IUploadFileOption) {
         filePath: obj.filePath || '',
         name: obj.name || '',
         formData: obj.formData,
-        success: function (res: wx.UploadFileSuccessCallbackResult) {
+        success (res: wx.UploadFileSuccessCallbackResult) {
             responseHandler(res, obj, 'uploadFile')
         },
-        fail: function (res: wx.GeneralCallbackResult) {
+        fail (res: wx.GeneralCallbackResult) {
             errorHandler.systemError(obj, res);
             console.error(res);
         },
-        complete: function () {
+        complete () {
             obj.count--;
-            typeof obj.complete === "function" && obj.count === 0 && obj.complete();
+            if(typeof obj.complete === "function" && obj.count === 0){
+                obj.complete();
+            }
         }
     })
 }
diff --git a/src/module/responseHandler.ts b/src/module/responseHandler.ts
index de1ca80..23d8a35 100644
--- a/src/module/responseHandler.ts
+++ b/src/module/responseHandler.ts
@@ -43,11 +43,11 @@ function response(
             status.sessionIsFresh = true;
             wx.removeStorage({
                 key: config.sessionName!,
-                complete: function () {
+                complete () {
                     if(method === "request") {
-                        requestHandler.request(<IRequestOption>obj);
+                        requestHandler.request(obj as IRequestOption);
                     } else if(method === "uploadFile") {
-                        requestHandler.uploadFile(<IUploadFileOption>obj);
+                        requestHandler.uploadFile(obj as IUploadFileOption);
                     }
                 }
             })
@@ -59,9 +59,11 @@ function response(
             } catch (e) {
                 console.error("Function successData occur error: " + e);
             }
-            if(!(<IRequestOption>obj).noCacheFlash) {
+            if(!(obj as IRequestOption).noCacheFlash) {
                 // 如果为了保证页面不闪烁，则不回调，只是缓存最新数据，待下次进入再用
-                typeof obj.success === "function" && obj.success(realData);
+                if(typeof obj.success === "function"){
+                    obj.success(realData);
+                }
             }
             // 缓存存储
             cacheManager.set(obj, realData);
diff --git a/src/module/sessionManager.ts b/src/module/sessionManager.ts
index f281f1e..851e31a 100644
--- a/src/module/sessionManager.ts
+++ b/src/module/sessionManager.ts
@@ -10,19 +10,19 @@ function checkSession() {
     return new Promise((resolve)=>{
         if (!status.sessionIsFresh && status.session) {
             console.log("wx.checkSession()");
-            let start = new Date().getTime();
+            const start = new Date().getTime();
             wx.checkSession({
-                success: function () {
+                success () {
                     // 登录态有效，且在本生命周期内无须再检验了
                     resolve();
                 },
-                fail: function () {
+                fail () {
                     // 登录态过期
                     status.session = '';
                     resolve();
                 },
-                complete: function () {
-                    let end = new Date().getTime();
+                complete () {
+                    const end = new Date().getTime();
                     durationReporter.report('checkSession', start, end);
                 }
             })
@@ -35,7 +35,9 @@ function checkSession() {
 function doLogin(callback: Function, obj: IRequestOption | IUploadFileOption) {
     if (obj.isLogin) {
         // 登录接口，直接放过
-        typeof callback === "function" && callback();
+        if(typeof callback === "function"){
+            callback();
+        }
     } else if (status.session) {
         // 缓存中有session
         if (status.sessionExpireTime && new Date().getTime() > status.sessionExpire) {
@@ -43,11 +45,13 @@ function doLogin(callback: Function, obj: IRequestOption | IUploadFileOption) {
             status.session = '';
             doLogin(callback, obj);
         } else {
-            typeof callback === "function" && callback();
+            if(typeof callback === "function"){
+                callback();
+            }
         }
     } else if (status.logining) {
         // 正在登录中，请求轮询稍后，避免重复调用登录接口
-        flow.wait('doLoginFinished', function () {
+        flow.wait('doLoginFinished', () => {
             doLogin(callback, obj);
         })
     } else {
@@ -59,13 +63,13 @@ function doLogin(callback: Function, obj: IRequestOption | IUploadFileOption) {
 function getCode(callback: Function, obj: IRequestOption | IUploadFileOption) {
     status.logining = true;
     console.log('wx.login');
-    let start = new Date().getTime();
+    const start = new Date().getTime();
     wx.login({
-        complete: function () {
-            let end = new Date().getTime();
+        complete () {
+            const end = new Date().getTime();
             durationReporter.report('login', start, end);
         },
-        success: function (res) {
+        success (res) {
             if (res.code) {
                 code2Session(res.code).then(()=>{
                     callback();
@@ -80,7 +84,7 @@ function getCode(callback: Function, obj: IRequestOption | IUploadFileOption) {
                 flow.emit('doLoginFinished');
             }
         },
-        fail: function (res) {
+        fail (res) {
             errorHandler.systemError(obj, res);
             console.error(res);
             // 登录失败，解除锁，防止死锁
@@ -90,7 +94,7 @@ function getCode(callback: Function, obj: IRequestOption | IUploadFileOption) {
     })
 }
 
-function code2Session(code: String) {
+function code2Session(code: string) {
     let data: any;
     // codeToSession.data支持函数
     if (typeof config.codeToSession.data === "function") {
@@ -103,11 +107,11 @@ function code2Session(code: String) {
     return new Promise((resolve)=>{
         requestHandler.request({
             url: config.codeToSession.url,
-            data: data,
+            data,
             method: config.codeToSession.method || 'GET',
             isLogin: true,
             report: config.codeToSession.report || config.codeToSession.url,
-            success: function (s: String) {
+            success (s: string) {
                 status.session = s;
                 status.sessionIsFresh = true;
                 // 如果有设置本地session过期时间
@@ -124,7 +128,7 @@ function code2Session(code: String) {
                 });
                 return resolve();
             },
-            complete: function () {},
+            complete () {},
             fail: config.codeToSession.fail || null
         } as IRequestOption)
     })
diff --git a/src/util/flow.ts b/src/util/flow.ts
index 98f422f..39ac864 100644
--- a/src/util/flow.ts
+++ b/src/util/flow.ts
@@ -1,16 +1,18 @@
-let store: any = {};
+const store: any = {};
 
 function emit(key: string) {
-    let flow = getFlow(key);
-    let currentLength = flow.waitingList.length;
+    const flow = getFlow(key);
+    const currentLength = flow.waitingList.length;
     for (let i = 0; i < currentLength; i++) {
-        let callback = flow.waitingList.shift();
-        typeof callback == "function" && callback();
+        const callback = flow.waitingList.shift();
+        if(typeof callback == "function"){
+            callback();
+        }
     }
 }
 
 function wait(key: string, callback: Function) {
-    var flow = getFlow(key);
+    const flow = getFlow(key);
     flow.waitingList.push(callback)
 }
 
diff --git a/src/util/url.ts b/src/util/url.ts
index 33efd97..2f685dc 100644
--- a/src/util/url.ts
+++ b/src/util/url.ts
@@ -1,28 +1,29 @@
-function setParams(url: string = '', params: object) {
-    let queryStringIndex: number = url.indexOf('?');
-    let kvp: any = {};
-    if (queryStringIndex >= 0) {
-        let oldQueryString = url.substr(queryStringIndex + 1).split('&');
-        for (let i = 0; i < oldQueryString.length; i++) {
-            let kv: Array<string> = oldQueryString[i].split('=');
-            kvp[kv[0]] = kv[1]
-        }
-    }
+function setParams(url: string = "", params: object) {
+  const queryStringIndex: number = url.indexOf("?");
+  let kvp: any = {};
+  if (queryStringIndex >= 0) {
+    const oldQueryString = url.substr(queryStringIndex + 1).split("&");
+    oldQueryString.forEach((x, i) => {
+      const kv: string[] = oldQueryString[i].split("=");
+      kvp[kv[0]] = kv[1];
+    });
+  }
 
-    kvp = {...kvp, ...params};
+  kvp = { ...kvp, ...params };
 
-    let queryString = Object.keys(kvp).map(key => {
-        return `${key}=${encodeURI(kvp[key])}`
-    }).join('&');
-
-    if (queryStringIndex >= 0) {
-        return url.substring(0, queryStringIndex + 1) + queryString
-    } else {
-        return url + "?" + queryString
-    }
+  const queryString = Object.keys(kvp)
+    .map(key => {
+      return `${key}=${encodeURI(kvp[key])}`;
+    })
+    .join("&");
 
+  if (queryStringIndex >= 0) {
+    return url.substring(0, queryStringIndex + 1) + queryString;
+  } else {
+    return url + "?" + queryString;
+  }
 }
 
 export default {
-    setParams
-}
+  setParams
+};