在 es6 中解构对象的键、值和索引

Question

Can you destructure the key, value, and index of an object in a forEach?

I understand destructuring key and value would look like:

Object.entries(obj).forEach(([key, value]) => {
  ...
});

But I'm hoping to also destructure the index.

My attempt:

Object.entries(obj).forEach((entry, index) => {
    const [key, value] = entry;
    ...
});

But wasn't sure if there was a better way. I know this is a pretty basic question but thanks for the help!

Answer 1

Just list the index argument normally after destructuring the first argument:

Object.entries(obj).forEach(([key, value], index) => {

 const obj = { foo: 'val' }; Object.entries(obj).forEach(([key, value], index) => { console.log(key, value, index); });