Rename combination_by_2 to combination_pairs

3 files changed, 11 insertions, 11 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14ff48c..4b7ef0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@
 - The `dynamic` module gains the `tuple3`, `tuple4`, `tuple5`, `tuple6`
   functions and their typed equivalents `typed_tuple3`, `typed_tuple4`,
   `typed_tuple5`, `typed_tuple6`.
-- The `list` module gains the `combinations`, `combinations_by_2`, `drop_while`, `map_fold`, `take_while`, `reduce`,
+- The `list` module gains the `combinations`, `combination_pairs`, `drop_while`, `map_fold`, `take_while`, `reduce`,
   `chunk`, `sized_chunk`, `last` and `scan` functions.
 - The `iterator` module gains the `index`, `iterate`, `zip`, `scan`, `last`,
   `take_while`, `drop_while`, `chunk`, `sized_chunk`, `intersperse`, `interleave`, `reduce`,
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam
index 869fc10..6170496 100644
--- a/src/gleam/list.gleam
+++ b/src/gleam/list.gleam
@@ -1480,12 +1480,12 @@ pub fn combinations(items: List(a), by n: Int) -> List(List(a)) {
   }
 }
 
-fn do_combinations_by_2(items: List(a)) -> List(List(tuple(a, a))) {
+fn do_combination_pairs(items: List(a)) -> List(List(tuple(a, a))) {
   case items {
     [] -> []
     [x, ..xs] -> {
       let first_combinations = map(xs, with: fn(other) { tuple(x, other) })
-      [first_combinations, combinations_by_2(xs)]
+      [first_combinations, combination_pairs(xs)]
     }
   }
 }
@@ -1495,11 +1495,11 @@ fn do_combinations_by_2(items: List(a)) -> List(List(tuple(a, a))) {
 /// ## Examples
 ///
 /// ```
-/// > combinations_by_2([1, 2, 3])
+/// > combination_pairs([1, 2, 3])
 /// [tuple(1, 2), tuple(1, 3), tuple(2, 3)]
 /// ```
 ///
-pub fn combinations_by_2(items: List(a)) -> List(tuple(a, a)) {
-  do_combinations_by_2(items)
+pub fn combination_pairs(items: List(a)) -> List(tuple(a, a)) {
+  do_combination_pairs(items)
   |> flatten
 }
diff --git a/test/gleam/list_test.gleam b/test/gleam/list_test.gleam
index ff812b6..16abd0a 100644
--- a/test/gleam/list_test.gleam
+++ b/test/gleam/list_test.gleam
@@ -674,17 +674,17 @@ pub fn combinations_test() {
   |> should.equal([[1, 2, 3], [1, 2, 4], [1, 3, 4], [2, 3, 4]])
 }
 
-pub fn combinations_by_2_test() {
-  list.combinations_by_2([1])
+pub fn combination_pairs_test() {
+  list.combination_pairs([1])
   |> should.equal([])
 
-  list.combinations_by_2([1, 2])
+  list.combination_pairs([1, 2])
   |> should.equal([tuple(1, 2)])
 
-  list.combinations_by_2([1, 2, 3])
+  list.combination_pairs([1, 2, 3])
   |> should.equal([tuple(1, 2), tuple(1, 3), tuple(2, 3)])
 
-  list.combinations_by_2([1, 2, 3, 4])
+  list.combination_pairs([1, 2, 3, 4])
   |> should.equal([
     tuple(1, 2),
     tuple(1, 3),