action-debian-package/node_modules/ramda/es/takeLastWhile.js
Dawid Dziurla 9308795b8b
update
2020-03-26 15:37:35 +01:00

41 lines
1.1 KiB
JavaScript

import _curry2 from "./internal/_curry2.js";
import slice from "./slice.js";
/**
* Returns a new list containing the last `n` elements of a given list, passing
* each value to the supplied predicate function, and terminating when the
* predicate function returns `false`. Excludes the element that caused the
* predicate function to fail. The predicate function is passed one argument:
* *(value)*.
*
* @func
* @memberOf R
* @since v0.16.0
* @category List
* @sig (a -> Boolean) -> [a] -> [a]
* @sig (a -> Boolean) -> String -> String
* @param {Function} fn The function called per iteration.
* @param {Array} xs The collection to iterate over.
* @return {Array} A new array.
* @see R.dropLastWhile, R.addIndex
* @example
*
* const isNotOne = x => x !== 1;
*
* R.takeLastWhile(isNotOne, [1, 2, 3, 4]); //=> [2, 3, 4]
*
* R.takeLastWhile(x => x !== 'R' , 'Ramda'); //=> 'amda'
*/
var takeLastWhile =
/*#__PURE__*/
_curry2(function takeLastWhile(fn, xs) {
var idx = xs.length - 1;
while (idx >= 0 && fn(xs[idx])) {
idx -= 1;
}
return slice(idx + 1, Infinity, xs);
});
export default takeLastWhile;