Batch items

batch_items.js

export function batch_items(items, items_per_batch){

    let batched_items = [];
    let group_items = [];
    let group_index = 0;

    for( let i = 0; i < items.length; i++ ) {
        group_index++;
        group_items.push(items[i]);

        if( group_index == items_per_batch || i == items.length-1 ) {
            // new group / reset
            batched_items.push(group_items);
            group_items = [];
            group_index = 0;
        }  
    }

    return batched_items
}