feat: fix typescript solution to lc problem: No.2057

Author: zhaocchen

solution/2000-2099/2057.Smallest Index With Equal Value/README.md

@@ -83,11 +83,7 @@ i=3: 3 mod 10 = 3 != nums[3].
 ### **TypeScript**
 
 ```ts
-/**
- * @param {number[]} nums
- * @return {number}
- */
-var smallestEqual = function(nums) {
+function smallestEqual(nums: number[]): number {
     for (let i = 0; i < nums.length; i++) {
         if (i % 10 == nums[i]) return i;
     }

solution/2000-2099/2057.Smallest Index With Equal Value/README_EN.md

@@ -77,11 +77,7 @@ i=3: 3 mod 10 = 3 != nums[3].
 ### **TypeScript**
 
 ```ts
-/**
- * @param {number[]} nums
- * @return {number}
- */
-var smallestEqual = function(nums) {
+function smallestEqual(nums: number[]): number {
     for (let i = 0; i < nums.length; i++) {
         if (i % 10 == nums[i]) return i;
     }

solution/2000-2099/2057.Smallest Index With Equal Value/Solution.ts

@@ -1,8 +1,4 @@
-/**
- * @param {number[]} nums
- * @return {number}
- */
- var smallestEqual = function(nums) {
+function smallestEqual(nums: number[]): number {
     for (let i = 0; i < nums.length; i++) {
         if (i % 10 == nums[i]) return i;
     }