action-debian-package/node_modules/ramda/es/findLastIndex.js

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2020-03-26 14:37:35 +00:00
import _curry2 from "./internal/_curry2.js";
import _dispatchable from "./internal/_dispatchable.js";
import _xfindLastIndex from "./internal/_xfindLastIndex.js";
/**
* Returns the index of the last element of the list which matches the
* predicate, or `-1` 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] -> Number
* @param {Function} fn The predicate function used to determine if the element is the
* desired one.
* @param {Array} list The array to consider.
* @return {Number} The index of the element found, or `-1`.
* @see R.transduce
* @example
*
* const xs = [{a: 1, b: 0}, {a:1, b: 1}];
* R.findLastIndex(R.propEq('a', 1))(xs); //=> 1
* R.findLastIndex(R.propEq('a', 4))(xs); //=> -1
*/
var findLastIndex =
/*#__PURE__*/
_curry2(
/*#__PURE__*/
_dispatchable([], _xfindLastIndex, function findLastIndex(fn, list) {
var idx = list.length - 1;
while (idx >= 0) {
if (fn(list[idx])) {
return idx;
}
idx -= 1;
}
return -1;
}));
export default findLastIndex;