webpack
Version:
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
33 lines (28 loc) • 604 B
JavaScript
/*
MIT License http://www.opensource.org/licenses/mit-license.php
*/
;
/** @template T @typedef {function(): T} FunctionReturning */
/**
* @template T
* @param {FunctionReturning<T>} fn memorized function
* @returns {FunctionReturning<T>} new function
*/
const memoize = fn => {
let cache = false;
/** @type {T} */
let result = undefined;
return () => {
if (cache) {
return result;
} else {
result = fn();
cache = true;
// Allow to clean up memory for fn
// and all dependent resources
fn = undefined;
return result;
}
};
};
module.exports = memoize;