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import _arity from './internal/_arity.js';import _curry2 from './internal/_curry2.js';import _has from './internal/_has.js';

/** * Creates a new function that, when invoked, caches the result of calling `fn` * for a given argument set and returns the result. Subsequent calls to the * memoized `fn` with the same argument set will not result in an additional * call to `fn`; instead, the cached result for that set of arguments will be * returned. * * Care must be taken when implementing key generation to avoid key collision, * or if tracking references, memory leaks and mutating arguments. * * @func * @memberOf R * @since v0.24.0 * @category Function * @sig (*... -> String) -> (*... -> a) -> (*... -> a) * @param {Function} fn The function to generate the cache key. * @param {Function} fn The function to memoize. * @return {Function} Memoized version of `fn`. * @example * *      let count = 0; *      const factorial = R.memoizeWith(Number, n => { *        count += 1; *        return R.product(R.range(1, n + 1)); *      }); *      factorial(5); //=> 120 *      factorial(5); //=> 120 *      factorial(5); //=> 120 *      count; //=> 1 */var memoizeWith = _curry2(function memoizeWith(mFn, fn) {  var cache = {};  return _arity(fn.length, function() {    var key = mFn.apply(this, arguments);    if (!_has(key, cache)) {      cache[key] = fn.apply(this, arguments);    }    return cache[key];  });});export default memoizeWith;