@cloakui/styles/dist/lazyFactory.js

TailwindCSS presets for styling components in any JS framework.

/**
 * lazyFactory creates a lazy-initialized factory function. It ensures that the
 * factory function is only created once and then caches it for future invocations.
 * This is particularly useful for factory functions that rely on some user-config to
 * be set before it is intiliazed; often that user-config is specified in _app.tsx, but
 * that will run after module resolution, meaning your factory function would initialize
 * before the user-config is set, resulting in incorrect behavior.
 *
 * @param {Function} factoryFn - A function that returns a factory function when called.
 * @returns {Function} A new factory function that lazily initializes and caches the original factory function.
 */
export function lazyFactory(factoryFn) {
    let factoryInstance = null;
    let initialized = false;
    // Return a function with the same signature as the factory function
    return function (...args) {
        if (!initialized) {
            factoryInstance = factoryFn();
            initialized = true;
        }
        // Since factoryInstance is guaranteed to be initialized here, we can use the non-null assertion
        return factoryInstance(...args);
    }; // Cast the function to T to ensure the returned type matches the factory function's type
}