main
Last change
on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
Initial commit
|
-
Property mode
set to
100644
|
File size:
995 bytes
|
Line | |
---|
1 | import _curry2 from "./internal/_curry2.js";
|
---|
2 | /**
|
---|
3 | * Creates a new list out of the two supplied by creating each possible pair
|
---|
4 | * from the lists.
|
---|
5 | *
|
---|
6 | * @func
|
---|
7 | * @memberOf R
|
---|
8 | * @since v0.1.0
|
---|
9 | * @category List
|
---|
10 | * @sig [a] -> [b] -> [[a,b]]
|
---|
11 | * @param {Array} as The first list.
|
---|
12 | * @param {Array} bs The second list.
|
---|
13 | * @return {Array} The list made by combining each possible pair from
|
---|
14 | * `as` and `bs` into pairs (`[a, b]`).
|
---|
15 | * @example
|
---|
16 | *
|
---|
17 | * R.xprod([1, 2], ['a', 'b']); //=> [[1, 'a'], [1, 'b'], [2, 'a'], [2, 'b']]
|
---|
18 | * @symb R.xprod([a, b], [c, d]) = [[a, c], [a, d], [b, c], [b, d]]
|
---|
19 | */
|
---|
20 |
|
---|
21 | var xprod =
|
---|
22 | /*#__PURE__*/
|
---|
23 | _curry2(function xprod(a, b) {
|
---|
24 | // = xprodWith(prepend); (takes about 3 times as long...)
|
---|
25 | var idx = 0;
|
---|
26 | var ilen = a.length;
|
---|
27 | var j;
|
---|
28 | var jlen = b.length;
|
---|
29 | var result = [];
|
---|
30 |
|
---|
31 | while (idx < ilen) {
|
---|
32 | j = 0;
|
---|
33 |
|
---|
34 | while (j < jlen) {
|
---|
35 | result[result.length] = [a[idx], b[j]];
|
---|
36 | j += 1;
|
---|
37 | }
|
---|
38 |
|
---|
39 | idx += 1;
|
---|
40 | }
|
---|
41 |
|
---|
42 | return result;
|
---|
43 | });
|
---|
44 |
|
---|
45 | export default xprod; |
---|
Note:
See
TracBrowser
for help on using the repository browser.