Leveraging the left-hand side operator while invoking functions within Angular 2 templates

I've encountered a puzzling situation with the function in my component :

public limit: number = 3

public logLimit(limit) {
  console.log(limit)
}

and in my template :

<div (click)="logLimit(--limit)">Decrease and log limit</div>

Strangely, when I click on the div, the logged limit remains at 3. This leaves me wondering why the -- operator didn't take effect as expected?

Answer №1

As far as I know, this feature is not currently supported.

You have the option to utilize:

<div (click)="limit = limit - 1;logLimit(limit)">Decrease and log limit</div>

It's important to note that Angular2 template bindings do not fully support TypeScript/JavaScript syntax. This limitation is intentional rather than a flaw.

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