Question

How to split array into N subarrays in Node.js

Answer 1

function splitArray(array, N) {
    let subarrays = [];
    
    for (let i = N; i > 0; i--) {
        subarrays.push(array.splice(0, Math.ceil(array.length / i)));
    }
    
    return subarrays;
}

const array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];

const N = 4;

const subarrays = splitArray(array, N);

console.log(subarrays);

  
  
  
  
/*
run:
  
[ [ 1, 2, 3, 4 ], [ 5, 6, 7, 8 ], [ 9, 10, 11, 12 ], [ 13, 14, 15 ] ]
  
*/

 

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