From 81133d668dcf4f64a603b267254773ae2c88a1e7 Mon Sep 17 00:00:00 2001
From: Your Name <your@email.com>
Date: Sat, 23 May 2026 13:27:09 +0530
Subject: [PATCH] fix: resolve calculator-operator-chaining

---
 web-app/js/projects/calculator.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/web-app/js/projects/calculator.js b/web-app/js/projects/calculator.js
index 7176e8d..c32632b 100644
--- a/web-app/js/projects/calculator.js
+++ b/web-app/js/projects/calculator.js
@@ -140,7 +140,7 @@ function initCalculator() {
     function safeEval(expr) {
         try {
             if (!expr) return "";
-            let result = eval(format(expr));
+            let result = Function('"use strict"; return (' + format(expr) + ')')();
             if (result === undefined) return "";
             if (isNaN(result)) return "Error";
             return String(result);
@@ -170,7 +170,7 @@ function initCalculator() {
 
  
     function clearIfFinished() {
-        if (expression === "Error" || expression === "NaN") {
+        if (expression === "Error" || expression === "NaN" || expression === "Infinity" || expression === "-Infinity") {
             expression = "";
         }
     }