Provide an easy way to create a new array, filled via a mapping function

By the way, the Array.from function was meant for converting iterables into arrays. However, I have never used it for that purpose because using the spread operator is a nicer way to convert iterables into arrays.

// when not mapping
const a = Array.from(someIterable);
const b = [...someIterable];

// when mapping
const c = Array.from(someIterable, mappingFn);
const d = [...someIterable].map(mappingFn);

In fact, the only time I ever use Array.from is specifically when I want to create an array of a specific length, i.e. I always write something like Array.from({ length: n }, (_, i) => …). So, I personally never use Array.from for its intended purpose. I only ever use it to create arrays of a specific length.

This is all the more reason to add Array.create to the language.

Anyway, I think I've done enough bikeshedding for today. I firmly believe that Array.create is a great addition to the language. From what I read, I also believe that everybody else is of the same opinion. If the committee is so against adding a simple quality of life function to the language, then that's their choice. I've said everything that I want to say.