How can I use JavaScript to split an array into chunks of a specific size?

General Discussions
, ,
4

Adding my two cents! Over the years while building large data-heavy apps, I realized that sometimes you need extra flexibility — that’s where a while loop approach shines for javascript split array into chunks problems. Here’s a version that’s easy to adapt:

function splitArrayIntoChunks(arr, chunkSize) {
    let result = [];
    let i = 0;
    while (i < arr.length) {
        result.push(arr.slice(i, i + chunkSize));
        i += chunkSize;
    }
    return result;
}

const arr = ["Element 1", "Element 2", "Element 3", "Element 4", "Element 5", "Element 6"];
console.log(splitArrayIntoChunks(arr, 2));

With the while loop, you keep pushing slices into the result array until you run out of elements. This makes it super simple to add any custom behavior if needed (like handling leftovers differently). If you’re working with very large arrays or need super fine-tuned behavior, this style really brings power to your javascript split array into chunks strategy.