diff --git a/JavaScript  calculator b/JavaScript  calculator
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+++ b/JavaScript  calculator	
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+<html>  
+<body>  
+<script>  
+  
+// i am vinay sati i am create a simple program to create a simple calculator using the if...else...if in JavaScript.  
+// take the operator from the user through prompt box in JavaScript.  
+const operator = prompt('Enter operator to perform the calculation ( either +, -, * or / ): ');  
+  
+// accept the number from the user through prompt box  
+const number1 = parseFloat(prompt ('Enter the first number: '));  
+const number2 = parseFloat(prompt ('Enter the second number: '));  
+  
+let result; // declaration of the variable.  
+  
+// use if, elseif and else keyword to define the calculator condition in JavaScript.  
+if (operator == '+') { // use + (addition) operator to add two numbers  
+    result = number1 + number2;  
+}  
+else if (operator == '-') { // use -  (subtraction) operator to subtract two numbers  
+    result = number1 - number2;  
+}  
+else if (operator == '*') { // use * (multiplication) operator to multiply two numbers  
+    result = number1 * number2;  
+}  
+else {  
+    result = number1 / number2; // use / (division) operator to divide two numbers  
+}  
+  
+// display the result of the Calculator  
+window.alert(" Result is" + result);  
+</script>  
+<body>  
+</html>  
