Javascript create multiple strings from 2d array using MAP?

Question

My array maybe looks like this:

var array=[
    [0,0,0,0],
    [0,0,0,0],
    [0,0,0,0],
    [0,0,0,0]
]

How to get a result like this without using a simple for loop? (Using MAP constructor?!)

var result=[
    ['0000'],
    ['0000'],
    ['0000'],
    ['0000']
]

My for loops solution would be something like this, but is there a way to achieve the result without a for loop?

var array=[
  [0,0,0,0],
  [0,0,0,0],
  [0,0,0,0],
  [0,0,0,0]
]


var new_array=[]
for (var i=0; i<array.length; i++) 
  new_array.push(array[i].toString().replace(/,/g,''))

console.log(new_array)

Thanks in advance.

But your code is absolutely not the right solution for my question @JesseSchokker — Jonas0000
– Jonas0000, Commented Nov 9, 2017 at 16:41

Ori Drori · Accepted Answer · 2017-11-09 16:45:24Z

4

You could map the joined values.

var array=[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]],
    result = array.map(a => [a.join('')]);

console.log(result);

edited Nov 9, 2017 at 16:45

Ori Drori

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answered Nov 9, 2017 at 16:25

Nina Scholz

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4 Comments

mhodges Over a year ago

Not exactly the desired output. Should be [ ["0000"], ["0000"], ... ]. a => [a.join('')] should do the trick

Jonas0000 Over a year ago

Thanks Nina. But thats not the exactly the solution I've searched for. I'd like to have get a 2d array like I've mentioned above. @Nina Scholz

mhodges Over a year ago

@Jonas0000 Just wrap the a.join('') in brackets, as I mentioned in my edited comment above. That will give you the output you desire

Jonas0000 Over a year ago

Ahh. Sorry @mhodges. I've failed to see your comment :) Thanks

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