Using new Array() to initialise an array of objects [duplicate]

Question

I would like to you Array.prototype.map method on an array of given length to initialise it with the objects. Note that I do not intend to any kind of loop here.

I had an idea to this as

cells = Array(numberOfCells).map(() => new Cell());

However, this does not work. Could somebody point out why and suggest a solution of a similar kind?

Array.from({length: numberOfCells}).map(() => new Cell()); — Tushar
– Tushar, Commented Apr 6, 2017 at 8:34
stackoverflow.com/questions/31737901/…, but use Array.from(numberOfCells, () => new Cell()) nowadays. — Ry-
– Ry- ♦, Commented Apr 6, 2017 at 8:34
I needed to do Array.from({length: numberOfCells}).map(() => new Cell()); to make it work. — Maciej Caputa
– Maciej Caputa, Commented Apr 6, 2017 at 8:57

Alex Romanov · Accepted Answer · 2017-04-06 08:44:14Z

1

This should work:

cells = Array.from(numberOfCells, () => new Cell());

edit: However, @Ryan was the first to point it out in the comments

edited Apr 6, 2017 at 8:44

answered Apr 6, 2017 at 8:35

Alex Romanov

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