@shopify/polaris/esnext/utilities/arrays.js

Shopify’s product component library

export function arraysAreEqual(firstArray, secondArray, comparator) {
    if (firstArray.length !== secondArray.length) {
        return false;
    }
    return firstArray.every((firstItem, index) => {
        const secondItem = secondArray[index];
        if (comparator != null) {
            return comparator(firstItem, secondItem);
        }
        return firstItem === secondItem;
    });
}