function mergeCapacityMaps()

in packages/dynamodb-query-iterator/src/mergeConsumedCapacities.ts [49:71]

• 20 lines of code
• 8 McCabe index (conditional complexity)

function mergeCapacityMaps(
    a?: SecondaryIndexesCapacityMap,
    b?: SecondaryIndexesCapacityMap
): SecondaryIndexesCapacityMap|undefined {
    if (a || b) {
        const out: SecondaryIndexesCapacityMap = {};

        a = a || {};
        b = b || {};
        const keys = new Set<string>();
        for (const map of [a, b]) {
            for (const indexName of Object.keys(map)) {
                keys.add(indexName);
            }
        }

        for (const key of keys) {
            out[key] = mergeCapacities(a[key], b[key])!;
        }

        return out;
    }
}