如何在不使用 for 循环的情况下迭代 FormData entries() 数组

Question

I try to iterate over a FormData entries() object. ESlint is giving me error that I really shouldn't do it the way I have done below: iterators/generators require regenerator-runtime, which is too heavyweight for this guide to allow them. Separately, loops should be avoided in favor of array iterations. iterators/generators require regenerator-runtime, which is too heavyweight for this guide to allow them. Separately, loops should be avoided in favor of array iterations.

for (const row of data.entries()) {
  const search = row[0].replace('internal_', '');

  if (search.length > 0 && search.substr(1, 3) !== 'ext') {
    currentCTX.data[search][2] = row[1];
  }
  const currentData = JSON.stringify(currentCTX.data);
  const { feedId } = window;
  const params = { userSave: currentData, id: parseInt(feedId, 10), channel: 'import' };
  const res = fetchData(`${apiUrl}mapping`, params).then(() => window.location = '/');
}

However entries() doesn't have forEach() so I can not use it.

What is a clean way to do the above?

Answer 1

Instead of using for..of , spread the .entries() iterator into an array so you can use forEach on it:

[...data.entries()].forEach((row) => {
  // ...