添加kama54.替换数字.md Javascript版本

problems/kama54.替换数字.md

@@ -245,7 +245,60 @@ class Solution:
         return ''.join(lst)
 ```
 ### JavaScript:
+```js
+const readline = require("readline");
 
+const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout
+})
+
+function main() {
+    const num0 = "0".charCodeAt();
+    const num9 = "9".charCodeAt();
+    const a = "a".charCodeAt();
+    const z = "z".charCodeAt();
+    function isAZ(str) {
+        return str >= a && str <= z;
+    }
+    function isNumber(str) {
+        return str >= num0 && str <= num9;
+    }
+    rl.on("line", (input) => {
+        let n = 0;
+        for (let i = 0; i < input.length; i++) {
+            const val = input[i].charCodeAt();
+            if (isNumber(val)) {
+                n+= 6;
+            }
+            if (isAZ(val)) {
+                n++;
+            }
+        }
+        const ans = new Array(n).fill(0);
+        let index = input.length - 1;
+        for (let i = n - 1; i >= 0; i--) {
+            const val = input[index].charCodeAt();
+            if (isAZ(val)) {
+                ans[i] = input[index];
+            }
+            if (isNumber(val)) {
+                ans[i] = "r";
+                ans[i - 1] = "e";
+                ans[i - 2] = "b";
+                ans[i - 3] = "m";
+                ans[i - 4] = "u";
+                ans[i - 5] = "n";
+                i -= 5;
+            }
+            index--;
+        }
+        console.log(ans.join(""));
+    })
+}
+
+main();
+```
 
 ### TypeScript：