Why do we use keys in multipart/formdata in Angular 6

Question

What is the role of companyName and companyCode?

const formData: any = new FormData();

formData.append('companyName', companyName);
formData.append('companyCode', companyCode);
formData.append('aboutCompany', aboutCompany);

Answer 1

here you are trying to create a form data to post from a form, so first create a new form data object by const formData: any = new FormData(); and you are adding following information(companyName, companyCode, aboutCompany) to that form data with a key of the same name. at the end formData will be have something as below:

formData = {
 'companyName', companyName,
 'companyCode', companyCode,
 'aboutCompany', aboutCompany
 }