The issue of losing context when using Papaparse with an Angular 4 function

Check out this block of code

httpcsv2Array(event) {
    var gethttpcsv = 
    Papa.parse('https://docs.google.com/spreadsheets/d/e/yadyada/pub?output=csv', {
                        download: true,
                        header: true,
                        dynamicTyping: true//,
                        complete: this.importhttpcsv
            });
}

importhttpcsv(results) {
    this.bformservice.deleteAll();

    results.data.forEach(item => {
      let tarr = item as bform;
      this.bformservice.bulkcreatebform(tarr);
    });
}

While working with the above code, I encountered an error message stating that importhttpcsv is being called within the papa.parse context which leads to the following error: TypeError: Cannot read property 'deleteAll' of undefined

Interestingly, in other methods within the same class, using this.bformservice.deleteAll() does not raise errors.

In order to update the database, I require access to functions from a separate service. Could you suggest a solution for this issue?

Your assistance is greatly appreciated!

Answer №1

To ensure the proper functioning of Arrow function, it is important to utilize it to accurately represent this

finalize: () => { 
  this.importData();
} 

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