nextdevkit/dist/utils/lib/memoize.js

A Comprehensive CLI Toolkit for Next.js Development

const memoize = (fn, options = {}) => {
    const { maxSize = 1000, serializer = (...args) => JSON.stringify(args) } = options;
    const cache = new Map();
    const memoizedFn = ((...args) => {
        const key = serializer(...args);
        if (cache.has(key)) {
            return cache.get(key);
        }
        const result = fn(...args);
        cache.set(key, result);
        if (cache.size > maxSize) {
            // Remove the oldest entry
            const iterator = cache.keys();
            const firstKey = iterator.next().value;
            if (typeof firstKey === 'string') {
                cache.delete(firstKey);
            }
            else {
                console.warn('Attempted to delete an undefined key from the cache.');
            }
        }
        return result;
    });
    return memoizedFn;
};
export default memoize;