Print two arrays side by side in a multidimensional array Javascript -

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this code: 

    function chunk(arr, size) {          answer = [['']['']];          firsthalf = arr.slice(0,size);         secondhalf = arr.slice(size, arr.length);          return firsthalf;     }      chunk(['a', 'b', 'c', 'd'], 2);

my goal print 2 cut arrays side side. i'm looking result this: 

    [[ 'a', 'b' ],[ 'c', 'd' ]]

i know need push 2 seperate arrays somehow, can't seem work.

here 1 way create data structure you're looking for. modified function returns array 2 split arrays in it.

function chunk(arr, size) {    var firsthalf = arr.slice(0,size);   var secondhalf = arr.slice(size, arr.length);    return [firsthalf, secondhalf]; }  var out = chunk(['a', 'b', 'c', 'd'], 2); console.log(out);

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