feat: add js solution to lc problem: No. 1653

Author: rain84

solution/1600-1699/1653.Minimum Deletions to Make String Balanced/README.md

@@ -435,6 +435,27 @@ function minimumDeletions(s: string): number {
 }
 ```
 
+#### JavaScript
+
+```js
+/**
+ * @param {string} s
+ * @return {number}
+ */
+var minimumDeletions = function (s) {
+    let ra = [...s].reduce((acc, x) => (x === 'a' ? acc + 1 : acc), 0);
+    let lb = 0;
+
+    let ans = s.length;
+    for (const ch of s) {
+        if (ch === 'a') ra--;
+        ans = Math.min(ans, lb + ra);
+        if (ch === 'b') lb++;
+    }
+    return ans;
+};
+```
+
 <!-- solution:start -->
 
 ### Solution 4: Stack

solution/1600-1699/1653.Minimum Deletions to Make String Balanced/README_EN.md

@@ -433,6 +433,27 @@ function minimumDeletions(s: string): number {
 }
 ```
 
+#### JavaScript
+
+```js
+/**
+ * @param {string} s
+ * @return {number}
+ */
+var minimumDeletions = function (s) {
+    let ra = [...s].reduce((acc, x) => (x === 'a' ? acc + 1 : acc), 0);
+    let lb = 0;
+
+    let ans = s.length;
+    for (const ch of s) {
+        if (ch === 'a') ra--;
+        ans = Math.min(ans, lb + ra);
+        if (ch === 'b') lb++;
+    }
+    return ans;
+};
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->

solution/1600-1699/1653.Minimum Deletions to Make String Balanced/Solution3.js

@@ -0,0 +1,16 @@
+/**
+ * @param {string} s
+ * @return {number}
+ */
+var minimumDeletions = function (s) {
+    let ra = [...s].reduce((acc, x) => (x === 'a' ? acc + 1 : acc), 0);
+    let lb = 0;
+
+    let ans = s.length;
+    for (const ch of s) {
+        if (ch === 'a') ra--;
+        ans = Math.min(ans, lb + ra);
+        if (ch === 'b') lb++;
+    }
+    return ans;
+};