How to Efficiently Split Large Arrays into Smaller Chunks in JavaScript?

Splitting Large Arrays into Smaller Chunks

Question:

When faced with large arrays, sometimes it becomes necessary to break them down into smaller, more manageable units. How can we effectively split an array into chunks of a specified size in JavaScript?

Answer:

To split an array into chunks, we can utilize the Array.slice() method. This method allows us to extract a portion of the array from a specific starting index to a specified ending index, without altering the original array.

Implementation:

The following code demonstrates how to split an array into chunks of size 10:

const chunkSize = 10;
for (let i = 0; i < array.length; i += chunkSize) {
    const chunk = array.slice(i, i + chunkSize);
    // Perform desired operations on the chunk
}

Observations:

• The loop increment i = chunkSize advances the starting index of each chunk by the specified chunk size.
• The last chunk may contain fewer elements than the specified chunk size if the array's length is not evenly divisible by the chunk size.
• Setting the chunkSize to 0 will result in an infinite loop.

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