fix(at, pullAt): Return T[] instead of Array<T | undefined>

toss · Jan 30, 2025 · e407e15 · e407e15
1 parent e4fb039
commit e407e15
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diff --git a/docs/ja/reference/array/at.md b/docs/ja/reference/array/at.md
@@ -7,7 +7,7 @@
 ## インターフェース
 
 ```typescript
-function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
+function at<T>(arr: T[], indices: number[]): T[];
 ```
 
 ### パラメータ
@@ -17,7 +17,7 @@ function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
 
 ### 戻り値
 
-(`Array<T | undefined>`): 指定されたインデックスの位置にある要素を含む新しい配列。
+(`T[]`): 指定されたインデックスの位置にある要素を含む新しい配列。
 
 ## 例
 

diff --git a/docs/ja/reference/array/pullAt.md b/docs/ja/reference/array/pullAt.md
@@ -7,7 +7,7 @@
 ## インターフェース
 
 ```typescript
-function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
+function pullAt<T>(arr: T[], indicesToRemove: number[]): T[];
 ```
 
 ### パラメータ
@@ -17,7 +17,7 @@ function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
 
 ### 戻り値
 
-(`Array<T | undefined>`): 元の配列から削除された要素を含む新しい配列。
+(`T[]`): 元の配列から削除された要素を含む新しい配列。
 
 ## 例
 

diff --git a/docs/ko/reference/array/at.md b/docs/ko/reference/array/at.md
@@ -7,7 +7,7 @@
 ## 인터페이스
 
 ```typescript
-function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
+function at<T>(arr: T[], indices: number[]): T[];
 ```
 
 ### 파라미터
@@ -17,7 +17,7 @@ function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
 
 ### 반환 값
 
-(`Array<T | undefined>`): 주어진 인덱스에 있는 요소들을 가지는 새 배열.
+(`T[]`): 주어진 인덱스에 있는 요소들을 가지는 새 배열.
 
 ## 예시
 

diff --git a/docs/ko/reference/array/pullAt.md b/docs/ko/reference/array/pullAt.md
@@ -7,7 +7,7 @@
 ## 인터페이스
 
 ```typescript
-function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
+function pullAt<T>(arr: T[], indicesToRemove: number[]): T[];
 ```
 
 ### 파라미터
@@ -17,7 +17,7 @@ function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
 
 ### 반환 값
 
-(`Array<T | undefined>`): 제거된 요소들의 배열.
+(`T[]`): 제거된 요소들의 배열.
 
 ## 예시
 

diff --git a/docs/reference/array/at.md b/docs/reference/array/at.md
@@ -7,7 +7,7 @@ This function supports negative indices, which count from the end of the array.
 ## Signature
 
 ```typescript
-function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
+function at<T>(arr: T[], indices: number[]): T[];
 ```
 
 ### Parameters
@@ -17,7 +17,7 @@ function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
 
 ### Returns
 
-(`Array<T | undefined>`): A new array containing the elements at the specified indices.
+(`T[]`): A new array containing the elements at the specified indices.
 
 ## Examples
 

diff --git a/docs/reference/array/pullAt.md b/docs/reference/array/pullAt.md
@@ -7,7 +7,7 @@ This function supports negative indices, which count from the end of the array.
 ## Signature
 
 ```typescript
-function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
+function pullAt<T>(arr: T[], indicesToRemove: number[]): T[];
 ```
 
 ### Parameters
@@ -17,7 +17,7 @@ function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
 
 ### Returns
 
-(`Array<T | undefined>`): An array containing the elements that were removed from the original array.
+(`T[]`): An array containing the elements that were removed from the original array.
 
 ## Examples
 

diff --git a/docs/zh_hans/reference/array/at.md b/docs/zh_hans/reference/array/at.md
@@ -7,7 +7,7 @@
 ## 签名
 
 ```typescript
-function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
+function at<T>(arr: T[], indices: number[]): T[];
 ```
 
 ### 参数
@@ -17,7 +17,7 @@ function at<T>(arr: T[], indices: number[]): Array<T | undefined>;
 
 ### 返回值
 
-(`Array<T | undefined>`): 一个新数组，包含在指定索引处的元素。
+(`T[]`): 一个新数组，包含在指定索引处的元素。
 
 ## 示例
 

diff --git a/docs/zh_hans/reference/array/pullAt.md b/docs/zh_hans/reference/array/pullAt.md
@@ -7,7 +7,7 @@
 ## 签名
 
 ```typescript
-function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
+function pullAt<T>(arr: T[], indicesToRemove: number[]): T[];
 ```
 
 ### 参数
@@ -17,7 +17,7 @@ function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined>;
 
 ### 返回值
 
-(`Array<T | undefined>`): 包含从原始数组中删除的元素的新数组。
+(`T[]`): 包含从原始数组中删除的元素的新数组。
 
 ## 示例
 

diff --git a/src/array/at.ts b/src/array/at.ts
@@ -13,8 +13,8 @@
  * const result = at(numbers, [1, 3, 4]);
  * console.log(result); // [20, 40, 50]
  */
-export function at<T>(arr: readonly T[], indices: number[]): Array<T | undefined> {
-  const result = new Array<T | undefined>(indices.length);
+export function at<T>(arr: readonly T[], indices: number[]): T[] {
+  const result = new Array<T>(indices.length);
   const length = arr.length;
 
   for (let i = 0; i < indices.length; i++) {

diff --git a/src/array/pullAt.ts b/src/array/pullAt.ts
@@ -18,7 +18,7 @@ import { at } from './at.ts';
  * console.log(removed); // [20, 40, 50]
  * console.log(numbers); // [10, 30]
  */
-export function pullAt<T>(arr: T[], indicesToRemove: number[]): Array<T | undefined> {
+export function pullAt<T>(arr: T[], indicesToRemove: number[]): T[] {
   const removed = at(arr, indicesToRemove);
   const indices = new Set(indicesToRemove.slice().sort((x, y) => y - x));