From 6fe636ff1ec0c9ca7bee5626ac9716efb70a9c2e Mon Sep 17 00:00:00 2001
From: panzerstadt <tliqun@gmail.com>
Date: Mon, 8 May 2023 20:11:04 +0900
Subject: [PATCH 1/2] improve .partition type

---
 src/array.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/array.ts b/src/array.ts
index 9aa8a6e..86f8c86 100644
--- a/src/array.ts
+++ b/src/array.ts
@@ -366,7 +366,7 @@ export function shuffle<T>(value: T[]) {
 /**
  * Returns a tuple separating the items that pass the given truth test.
  */
-export function partition<T>(value: T[], callback: Function) {
+export function partition<T>(value: T[], callback: (item:T) => boolean) {
     const tuple = [[], []] as [T[], T[]]
 
     value.forEach((item, index) => {

From 51ce79250248dc693bc5858fc8a7734b08183961 Mon Sep 17 00:00:00 2001
From: panzerstadt <tliqun@gmail.com>
Date: Mon, 8 May 2023 20:14:41 +0900
Subject: [PATCH 2/2] ah types for fp and chains too

---
 src/array.ts             | 2 +-
 src/objects/Arrayable.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/array.ts b/src/array.ts
index 86f8c86..f79b219 100644
--- a/src/array.ts
+++ b/src/array.ts
@@ -366,7 +366,7 @@ export function shuffle<T>(value: T[]) {
 /**
  * Returns a tuple separating the items that pass the given truth test.
  */
-export function partition<T>(value: T[], callback: (item:T) => boolean) {
+export function partition<T>(value: T[], callback: (item: T, index?: number) => boolean) {
     const tuple = [[], []] as [T[], T[]]
 
     value.forEach((item, index) => {
diff --git a/src/objects/Arrayable.ts b/src/objects/Arrayable.ts
index 79ef863..1cbc9d9 100644
--- a/src/objects/Arrayable.ts
+++ b/src/objects/Arrayable.ts
@@ -312,7 +312,7 @@ class Arrayable<T> extends Array<T> {
     /**
      * Returns a tuple separating the items that pass the given truth test.
      */
-    partition(callback: Function) {
+    partition(callback: (item: T) => boolean) {
         const partitioned = this.constructor.from(Arr.partition(this, callback))
         return partitioned.map(item => this.constructor.from(item))
     }