JavaScript: Chunk an array into smaller arrays of a specified size

JavaScript fundamental (ES6 Syntax): Exercise-265 with Solution

Write a JavaScript program to chunk an array into smaller arrays of a specified size.

• Use Array.from() to create a new array, that fits the number of chunks that will be produced.
• Use Array.prototype.slice() to map each element of the new array to a chunk the length of size.
• If the original array can't be split evenly, the final chunk will contain the remaining elements.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
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], 2));

Sample Output:

[[1,2],[3,4],[5]]

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-265-1 by w3resource (@w3resource) on CodePen.

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