using eval function

arrehman3 · Jul 8, 2024 · 33e1415 · 33e1415
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commit 33e1415
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diff --git a/index.html b/index.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Calculator</title>
+    <link rel="stylesheet" href="style.css">
+    <script src="main.js" defer></script>
+</head>
+<body>
+    <div class="maincontainer">
+        <div class="screen">Screen</div>
+        <div class="buttons">
+            <div>0</div>
+            <div>1</div>
+            <div>2</div>
+            <div>3</div>
+            <div>4</div>
+            <div>5</div>
+            <div>6</div>
+            <div>7</div>
+            <div>8</div>
+            <div>9</div>
+            <div>+</div>
+            <div>-</div>
+            <div>*</div>
+            <div>/</div>
+            <div>CE</div>
+            <div>=</div>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/main.js b/main.js
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+document.addEventListener('DOMContentLoaded',function(){
+    const screen = document.querySelector('.screen');
+    const buttons = document.querySelectorAll('.buttons div');
+    let currentInput='';
+    let result='';
+
+    buttons.forEach(button=>{
+        button.addEventListener("click",()=>{
+            const value = button.textContent;
+
+            if (value === "CE") {
+                currentInput = "";
+                result = "";
+              } else if (value === "=") {
+                try {
+                  result = eval(currentInput);
+                } catch {
+                  result = "Error";
+                }
+                currentInput = result;
+              } else {
+                currentInput += value;
+              }
+
+              screen.textContent = currentInput || result || "0";
+        })
+    })
+})
diff --git a/style.css b/style.css
@@ -0,0 +1,55 @@
+
+body {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+    background-color: #f0f0f0;
+    margin: 0;
+    font-family: Arial, sans-serif;
+  }
+
+.maincontainer{
+    width: 340px;
+    height: auto;
+    border: 1px solid #100e0e;
+    background-color: #fff;
+}
+.screen{
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border: 1px solid #100e0e;
+    height: 50px;
+    background-color: #222;
+    padding: 0 10px;
+    border-top-left-radius: 10px;
+    border-top-right-radius: 10px;
+    color: #fff;
+}
+.buttons{
+    display: grid;
+    grid-template-columns: repeat(4,1fr);
+    gap: 10px;
+    padding: 10px;
+}
+
+.buttons div{
+    height: 50px;
+    background-color: #ddd;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-size: 1.5rem;
+    border:1.5px solid bisque;
+    cursor: pointer;
+}
+
+.buttons div:hover{
+    background-color: #999;
+}
+
+.buttons div:active{
+    background-color: #3f3f3f;
+}
+
diff --git a/test.html b/test.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Center Div with Flex</title>
+  <style>
+    .parent {
+      display: flex;
+      justify-content: center; 
+      align-items: center;     
+      height: 100vh;           
+      border: 1px solid #000;  
+    }
+    .child {
+      /* width: 50%;              
+      height: 50%;             
+      background-color: lightblue;  */
+    }
+  </style>
+</head>
+<body>
+  <div class="parent">
+    <div class="child">
+      Centered Child
+    </div>
+  </div>
+</body>
+</html>