This error occurs when using a *ngFor loop on an object in Angular.

You can fix this by creating the following pipe. Using this, you transform the object into an array on runtime

import { Pipe, PipeTransform } from '@angular/core';

  name: 'objectToArray',
export class ObjectToArrayPipe implements PipeTransform {
  // The object parameter represents the values of the properties or index.
  transform = (objects: any = []) => {
    return Object.values(objects);

You can now use:

<div *ngFor="let review of (|objectToArray)">
{{ }}

I changed this original fix on Stackexchange a bit, using the newer strict typescript syntax.


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