Wait for subscription to complete

Question

I have a simple scenario: I want to store an array returned from a service into a class variable. How do I wait for the data to be available until I store the data? It is a

Answer 1

You can just do it on complete() function. Doing that you will ensure that the data has arrived first.

    getEventHistory(): void {
    this.eventHistoryService.getEventHistory()
                            .subscribe(data =>  this.heatmapData = data,
                                       error => console.log('Error in Heatmap get data: ' + <any> error),
                                       () => console.log('HeatmapData: '+ this.heatmapData.toString());
                            );

    }