Cannot assign public variable from a function in Angular 6

Question

I'm using cordova AppCenter Shared plugin inside Ionic4 app and calling function, I was able to get ID in console, but cannot assign it to public variable, any ideas?:

Stack: Angular 6

public deviceId: string = '';

this._window.AppCenter.getInstallId(function(success, error) {
          console.log(success);
          this.deviceId = success;        
      });

Possible duplicate of [How to access the correct \`this\` inside a callback?](https://stackoverflow.com/questions/20279484/how-to-access-the-correct-this-inside-a-callback) — ConnorsFan, Oct 31 '18 at 14:46

score 2 · Accepted Answer · answered Oct 24 '18 at 08:44

2

this._window.AppCenter.getInstallId(success => {
      console.log(success);
      this.deviceId = success;        
});

For more detail, read this

answered Oct 24 '18 at 08:44

Harun Or Rashid

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Sajeetharan · Answer 2 · 2018-10-24T08:51:18.227

1

You need to use arrow function in this case, because using this refers to the function context.

this._window.AppCenter.getInstallId(success => {
     this.deviceId = success;        
});

You can refer the answer here

edited Oct 24 '18 at 08:51

answered Oct 24 '18 at 08:25

Sajeetharan

216,225
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Cannot assign public variable from a function in Angular 6

2 Answers2