Give dynamic id Angular2 Binds

the way you said works, Angular 2.0.0.beta.8.

in this case you can use for example:

• [id]="item.id"
• [attr.id]="item.id"

• id={{item.id}}

       <ul>
        <li *ngFor="#item of items" #elem [id]="item.id">
          {{ item.name}} ID: {{elem.id}}
        </li>
       </ul>
  
       <ul>
        <li *ngFor="#item of items" #elem [attr.id]="item.id">
          {{ item.name}} ID: {{elem.id}}
        </li>
       </ul>
  
       <ul>
        <li *ngFor="#item of items" #elem id={{item.id}}>
          {{ item.name}} ID: {{elem.id}}
        </li>
       </ul>
  

Plunker

You can look here for more information in Template syntax.

https://angular.io/guide/cheatsheet