Detect change in a variable?

问题:

Is it possible to detect change in a variable?

I have the following:

@Input('name') name: string;

I would like to call a function whenever change is happened in this variable 'name'.

Is it possible?

回答1:

You can do it the following:

private _name = '';

@Input('name')
set name(name: string) {
   this._name = name;
   doSomeStuff();
}

get name(): string { return this._name; }

回答2:

I am solve this question using default Angular feature named OnChanges, very similar to OnInit.

https://stackoverflow.com/a/61720541/13514355