Run results for: testachunk

Test name	Executions per second
1	28836.2 Ops/sec
2	31567.7 Ops/sec
3	30753.4 Ops/sec
4	31927.0 Ops/sec
5	34190.6 Ops/sec
6	33069.5 Ops/sec

1

 function chunkArraySlice(array, size) {
      let result = []
  
      for (i = 0; i < array.length; i += size) {
          let chunk = array.slice(i, i + size)
          result.push(chunk)
      }
  
      return result
  }

console.log(chunkArraySlice([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));

2

const chunk = (arr, size) =>
  Array.from({ length: Math.ceil(arr.length / size) }, (v, i) =>
    arr.slice(i * size, i * size + size)
  );
console.log(chunk([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));

3

function chunkArray(myArray, chunk_size){
    var results = [];
    
    while (myArray.length) {
        results.push(myArray.splice(0, chunk_size));
    }
    
    return results;
}

console.log(chunkArray([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));

4

function chunkArraySlice(array, size) {
      let result = []
  
      let i = 0
        array.forEach(() => {
          let chunk = array.slice(i, i + size)
          result.push(chunk)
          i+=size
      })
  
      return result
  }

console.log(chunkArraySlice([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));

5


const chunkIt = (arr, size) => {
  let buckets = []

  // Just create the buckets/chunks storage
  for (let i = 1; i <= Math.ceil(arr.length / size); i++) {
    buckets.push([])
  }

  // Put in the buckets/storage by index access only
  for (let i = 0; i < arr.length; i++) {
    var arrIndex = Math.ceil((i + 1) / size) - 1
    buckets[arrIndex].push(arr[i])
  }

  return buckets;
}

console.log(chunkIt([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));

6

function chunk10(arr, n) {
  let chunked = arr.reduce((chunk, val) => {

    if (chunk[chunk.length - 1].length === n)
      chunk.push([]);

    chunk[chunk.length - 1].push(val);

    return chunk;
  }, [
    []
  ]);

  return chunked
}

console.log(chunk10([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], 2));