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x/ramda/zipWith.js

:ram: Practical functional Javascript
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import _curry3 from './internal/_curry3';

/** * Creates a new list out of the two supplied by applying the function to each * equally-positioned pair in the lists. The returned list is truncated to the * length of the shorter of the two input lists. * * @function * @memberOf R * @since v0.1.0 * @category List * @sig ((a, b) -> c) -> [a] -> [b] -> [c] * @param {Function} fn The function used to combine the two elements into one value. * @param {Array} list1 The first array to consider. * @param {Array} list2 The second array to consider. * @return {Array} The list made by combining same-indexed elements of `list1` and `list2` * using `fn`. * @example * * const f = (x, y) => { * // ... * }; * R.zipWith(f, [1, 2, 3], ['a', 'b', 'c']); * //=> [f(1, 'a'), f(2, 'b'), f(3, 'c')] * @symb R.zipWith(fn, [a, b, c], [d, e, f]) = [fn(a, d), fn(b, e), fn(c, f)] */var zipWith = _curry3(function zipWith(fn, a, b) { var rv = []; var idx = 0; var len = Math.min(a.length, b.length); while (idx < len) { rv[idx] = fn(a[idx], b[idx]); idx += 1; } return rv;});export default zipWith;