chore: execute js/py code

tools/execute_js_code.js

@@ -5,15 +5,15 @@
  * @param {Args} args
  */
 exports.run = function run({ code }) {
-  let log = "";
+  let output = "";
   const oldStdoutWrite = process.stdout.write.bind(process.stdout);
   process.stdout.write = (chunk, _encoding, callback) => {
-    log += chunk;
+    output += chunk;
     if (callback) callback();
   };
 
   eval(code);
   
   process.stdout.write = oldStdoutWrite;
-  return log;
+  return output;
 }

tools/execute_py_code.py

@@ -7,10 +7,10 @@ def run(code: str):
         code: Python code to execute, such as `print("hello world")`
     """
     old_stdout = sys.stdout
-    new_stdout = io.StringIO()
+    output = io.StringIO()
-    sys.stdout = new_stdout
+    sys.stdout = output
 
     exec(code)
 
     sys.stdout = old_stdout
-    return new_stdout.getvalue()
+    return output.getvalue()