clean

src/app/new-room/new-room.component.html

@@ -10,7 +10,7 @@
       <md-icon>vpn_key</md-icon>
       <span>房间密码</span>
     </md-placeholder>
-    <input #hostPasswordRef mdInput name="title" [(ngModel)]="host_password" readonly>
+    <input #hostPasswordInput mdInput name="title" [(ngModel)]="host_password" readonly>
     <button type="button" md-icon-button mdSuffix (click)="copy(host_password)">
       <md-icon>content_copy</md-icon>
     </button>

src/app/new-room/new-room.component.ts

@@ -14,8 +14,8 @@ import { YGOProService } from '../ygopro.service';
 })
 export class NewRoomComponent {
 
-  @ViewChild('hostPasswordRef')
-  hostPasswordRef: ElementRef;
+  @ViewChild('hostPasswordInput')
+  hostPasswordInput: ElementRef;
 
   host_password = (this.login.user.external_id ^ 0x54321).toString();
 
@@ -31,7 +31,7 @@ export class NewRoomComponent {
   copy(host_password: string) {
 
     try {
-      this.hostPasswordRef.nativeElement.select();
+      this.hostPasswordInput.nativeElement.select();
 
       if (document.execCommand('copy')) {
         this.snackBar.open(`房间密码 ${host_password} 已复制到剪贴板`, undefined, { duration: 3000 });