JavaScript Code - Simple JavaScript Calculator
- <html>
- <head>
- <title>Simple Javascript Calculator - Basic Arithmetic Operations</title>
- <!-- Aim: Write HTML Code Using JavaScript Functions To Perform Basic Arithmetic Operations. -->
- <!-- 1. Take Two numbers from user say 'Number 1' and 'Number 2'. -->
- <!-- 2. Perform Addition, Subtraction, Multiplication, Division and Modulus. -->
- <!-- 3. Result must be displayed on same HTML Page when respective button is clicked. -->
- <!-- 4. Use <input> tag (HTML Forms Concept) with onclick.-->
- <!-- 5. Call individual Javascript Function, put them inside <head> tag only.-->
- <!-- 6. Javascript Tutorial/Code For Computer Science Students. -->
- <!-- 7. Tested and Written By (c) Gaurav Akrani. -->
- <script language="javascript" type="text/javascript">
- function multiply(){
- a=Number(document.calculator.number1.value);
- b=Number(document.calculator.number2.value);
- c=a*b;
- document.calculator.total.value=c;
- }
- </script>
- <script language="javascript" type="text/javascript">
- function addition(){
- a=Number(document.calculator.number1.value);
- b=Number(document.calculator.number2.value);
- c=a+b;
- document.calculator.total.value=c;
- }
- </script>
- <script language="javascript" type="text/javascript">
- function subtraction(){
- a=Number(document.calculator.number1.value);
- b=Number(document.calculator.number2.value);
- c=a-b;
- document.calculator.total.value=c;
- }
- </script>
- <script language="javascript" type="text/javascript">
- function division(){
- a=Number(document.calculator.number1.value);
- b=Number(document.calculator.number2.value);
- c=a/b;
- document.calculator.total.value=c;
- }
- </script>
- <script language="javascript" type="text/javascript">
- function modulus(){
- a=Number(document.calculator.number1.value);
- b=Number(document.calculator.number2.value);
- c=a%b;
- document.calculator.total.value=c;
- }
- </script>
- </head>
- <body>
- <!-- Opening a HTML Form. -->
- <form name="calculator">
- <!-- Here user will enter 1st number. -->
- Number 1: <input type="text" name="number1">
- <!-- Here user will enter 2nd number. -->
- Number 2: <input type="text" name="number2">
- <!-- Here result will be displayed. -->
- Get Result: <input type="text" name="total">
- <!-- Here respective button when clicked, calls only respective artimetic function. -->
- <input type="button" value="ADD" onclick="javascript:addition();">
- <input type="button" value="SUB" onclick="javascript:subtraction();">
- <input type="button" value="MUL" onclick="javascript:multiply();">
- <input type="button" value="DIV" onclick="javascript:division();">
- <input type="button" value="MOD" onclick="javascript:modulus();">
- </form>
- </body>
- </html>
Download JavaScript Calculator HTML Code Here : JavaScript Calculator!
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