Answers for "Expression has changed after it was checked. Previous value: '[object Object], mat-list-option"

angular ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked.

constructor(private ref: ChangeDetectorRef){}

  ngAfterContentChecked() {
    this.ref.detectChanges();
  }

Posted by: Guest on October-29-2020

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