1 | var _curry3 =
|
2 | /*#__PURE__*/
|
3 | require("./internal/_curry3");
|
4 | /**
|
5 | * Makes a descending comparator function out of a function that returns a value
|
6 | * that can be compared with `<` and `>`.
|
7 | *
|
8 | * @func
|
9 | * @memberOf R
|
10 | * @since v0.23.0
|
11 | * @category Function
|
12 | * @sig Ord b => (a -> b) -> a -> a -> Number
|
13 | * @param {Function} fn A function of arity one that returns a value that can be compared
|
14 | * @param {*} a The first item to be compared.
|
15 | * @param {*} b The second item to be compared.
|
16 | * @return {Number} `-1` if fn(a) > fn(b), `1` if fn(b) > fn(a), otherwise `0`
|
17 | * @see R.ascend
|
18 | * @example
|
19 | *
|
20 | * const byAge = R.descend(R.prop('age'));
|
21 | * const people = [
|
22 | * { name: 'Emma', age: 70 },
|
23 | * { name: 'Peter', age: 78 },
|
24 | * { name: 'Mikhail', age: 62 },
|
25 | * ];
|
26 | * const peopleByOldestFirst = R.sort(byAge, people);
|
27 | * //=> [{ name: 'Peter', age: 78 }, { name: 'Emma', age: 70 }, { name: 'Mikhail', age: 62 }]
|
28 | */
|
29 |
|
30 |
|
31 | var descend =
|
32 | /*#__PURE__*/
|
33 | _curry3(function descend(fn, a, b) {
|
34 | var aa = fn(a);
|
35 | var bb = fn(b);
|
36 | return aa > bb ? -1 : aa < bb ? 1 : 0;
|
37 | });
|
38 |
|
39 | module.exports = descend; |
\ | No newline at end of file |