Placing a blank object after every line within a TypeScript array

I'm currently working on creating an iterator using the .map() function, specifically in this way:

const csv = this.invoices
  .map(data => ({
    invoiceId: data.invoiceId,
    invoiceDate: data.invoiceDate,
    invoiceType: data.invoiceType,
    amount: data.subtotal,
  }));

Now, I am planning to export this array to a CSV file but require a blank line between each item. The CSV helper tool does not provide this functionality, so how can I go about inserting an empty object between every item within my csv array?

angulartypescript

Answer №1

To enhance the functionality, consider utilizing the flatMap function instead of map. Additionally, you can insert an empty object at the beginning or end of the array and then remove it as needed using pop or shift.

var data = this.records
  .flatMap(entry => [
    {},
    {
      entryId: entry.entryId,
      entryDate: entry.entryDate,
      entryType: entry.entryType,
      amount: entry.total,
    }
  ]);
data.shift();

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