Angular2：具有自定义值的模板变量

Question

I understand that I can assign local template variables to hold element reference like following

<input #myInput />

But can I declare a variable with custom value?

For example:

<!-- Somewhere I do #obj = model.data.something -->

<input [(ngModel)]="obj.inputA" >
<input [(ngModel)]="obj.inputB" >

Instead of doing

<input [(ngModel)]="model.data.something.inputA" >
<input [(ngModel)]="model.data.something.inputB" >

Answer 1

You can't declare a variable with a custom value.

A template variable

• can refer to the element or component it was applied to
• can refer to a specific directive (if one or more are applied to an element) by referring to its exportAs: 'xxx' property #myVar="xxx"
• can be declared by structural directives like *ngFor="let x of y; let i=index"

There is an open issue to support assigning custom expressions as well https://github.com/angular/angular/issues/2451