small arrays to big array js code example

Example 1: js split array into smaller arrays

Array.prototype.chunk = function(n) {
  if (!this.length) {
    return [];
  }
  return [this.slice(0, n)].concat(this.slice(n).chunk(n));
};
console.log([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15].chunk(5));

Example 2: javascript how to split array into subarrays javascript

// Example array.
let randomArray = [3, 5, 1, 5, 7,];
// Create an empty array.
let arrayOfArrays = [];

function splitArray( array ) {
    while (array.length > 0) {
        let arrayElement = array.splice(0,1);
        arrayOfArrays.push(arrayElement);
    }
    return arrayOfArrays;
}

// Call the function while passing in an array of your choice.
splitArray(randomArray)
// => [ [ 3 ], [ 5 ], [ 1 ], [ 5 ], [ 7 ] ]