@aws/pdk
Version:
All documentation is located at: https://aws.github.io/aws-pdk
52 lines (45 loc) • 1.18 kB
JavaScript
var _curry2 =
/*#__PURE__*/
require("./internal/_curry2.js");
var _dispatchable =
/*#__PURE__*/
require("./internal/_dispatchable.js");
var _xfindLast =
/*#__PURE__*/
require("./internal/_xfindLast.js");
/**
* Returns the last element of the list which matches the predicate, or
* `undefined` if no element matches.
*
* Acts as a transducer if a transformer is given in list position.
*
* @func
* @memberOf R
* @since v0.1.1
* @category List
* @sig (a -> Boolean) -> [a] -> a | undefined
* @param {Function} fn The predicate function used to determine if the element is the
* desired one.
* @param {Array} list The array to consider.
* @return {Object} The element found, or `undefined`.
* @see R.transduce
* @example
*
* const xs = [{a: 1, b: 0}, {a:1, b: 1}];
* R.findLast(R.propEq('a', 1))(xs); //=> {a: 1, b: 1}
* R.findLast(R.propEq('a', 4))(xs); //=> undefined
*/
var findLast =
/*#__PURE__*/
_curry2(
/*#__PURE__*/
_dispatchable([], _xfindLast, function findLast(fn, list) {
var idx = list.length - 1;
while (idx >= 0) {
if (fn(list[idx])) {
return list[idx];
}
idx -= 1;
}
}));
module.exports = findLast;