Array.from vs Array.prototype.map

Question

So what is the difference between this two functions?

They both create new Array object. Only difference I found so far is that Array.from supp

Answer 1

The purpose of Array.from() is to take a non-array (but array-like) object and make a copy of it into an actual array. This then allows you to use ALL array methods on the copy including things beyond just iterating it such as .splice(), .sort(), .push(), .pop(), etc... which is obviously much more capable than just make .map() work with array-like things.