3 files changed, 9 insertions, 9 deletions
diff --git a/src/background/infrastructures/ContentMessageClient.ts b/src/background/infrastructures/ContentMessageClient.ts
index 4d2284c..b6c0c23 100644
--- a/src/background/infrastructures/ContentMessageClient.ts
+++ b/src/background/infrastructures/ContentMessageClient.ts
@@ -4,8 +4,8 @@ import * as messages from '../../shared/messages';
 @injectable()
 export default class ContentMessageClient {
   async broadcastSettingsChanged(): Promise<void> {
-    let tabs = await browser.tabs.query({});
-    for (let tab of tabs) {
+    const tabs = await browser.tabs.query({});
+    for (const tab of tabs) {
       if (!tab.id || tab.url && tab.url.startsWith('about:')) {
         continue;
       }
@@ -16,7 +16,7 @@ export default class ContentMessageClient {
   }
 
   async getAddonEnabled(tabId: number): Promise<boolean> {
-    let enabled = await browser.tabs.sendMessage(tabId, {
+    const enabled = await browser.tabs.sendMessage(tabId, {
       type: messages.ADDON_ENABLED_QUERY,
     });
     return enabled as any as boolean;
diff --git a/src/background/infrastructures/ContentMessageListener.ts b/src/background/infrastructures/ContentMessageListener.ts
index f20340b..d063810 100644
--- a/src/background/infrastructures/ContentMessageListener.ts
+++ b/src/background/infrastructures/ContentMessageListener.ts
@@ -31,7 +31,7 @@ export default class ContentMessageListener {
       message: any, sender: browser.runtime.MessageSender,
     ) => {
       try {
-        let ret = this.onMessage(message, sender.tab as browser.tabs.Tab);
+        const ret = this.onMessage(message, sender.tab as browser.tabs.Tab);
         if (!(ret instanceof Promise)) {
           return {};
         }
@@ -94,7 +94,7 @@ export default class ContentMessageListener {
   }
 
   async onConsoleQueryCompletions(line: string): Promise<CompletionGroup[]> {
-    let completions = await this.commandController.getCompletions(line);
+    const completions = await this.commandController.getCompletions(line);
     return Promise.resolve(completions);
   }
 
@@ -140,7 +140,7 @@ export default class ContentMessageListener {
   }
 
   onConsoleFrameMessage(tabId: number, message: any): void {
-    let port = this.consolePorts[tabId];
+    const port = this.consolePorts[tabId];
     if (!port) {
       return;
     }
@@ -153,7 +153,7 @@ export default class ContentMessageListener {
     }
 
     if (port.sender && port.sender.tab && port.sender.tab.id) {
-      let id = port.sender.tab.id;
+      const id = port.sender.tab.id;
       this.consolePorts[id] = port;
     }
   }
diff --git a/src/background/infrastructures/MemoryStorage.ts b/src/background/infrastructures/MemoryStorage.ts
index baf9ffa..af445a6 100644
--- a/src/background/infrastructures/MemoryStorage.ts
+++ b/src/background/infrastructures/MemoryStorage.ts
@@ -2,7 +2,7 @@ const db: {[key: string]: any} = {};
 
 export default class MemoryStorage {
   set(name: string, value: any): void {
-    let data = JSON.stringify(value);
+    const data = JSON.stringify(value);
     if (typeof data === 'undefined') {
       throw new Error('value is not serializable');
     }
@@ -10,7 +10,7 @@ export default class MemoryStorage {
   }
 
   get(name: string): any {
-    let data = db[name];
+    const data = db[name];
     if (!data) {
       return undefined;
     }