Created
June 5, 2023 11:55
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Build a Simple Functional Calculator using HTML & JavaScript
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| <!--- Refer the article here | |
| abelroy.hashnode.dev/project-calculator | |
| --> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title> Calculator Web </title> | |
| </head> | |
| <body> | |
| <main> | |
| <input type="text" id="result"> | |
| <div> | |
| <button onclick="append('1')">1</button> | |
| <button onclick="append('2')">2</button> | |
| <button onclick="append('3')">3</button> | |
| <button onclick="append('+')">+</button> | |
| </div> | |
| <div> | |
| <button onclick="append('4')">4</button> | |
| <button onclick="append('5')">5</button> | |
| <button onclick="append('6')">6</button> | |
| <button onclick="append('-')">-</button> | |
| </div> | |
| <div> | |
| <button onclick="append('7')">7</button> | |
| <button onclick="append('8')">8</button> | |
| <button onclick="append('9')">9</button> | |
| <button onclick="append('*')">x</button> | |
| </div> | |
| <div> | |
| <button onclick="append('0')">0</button> | |
| <button onclick="calculate()">=</button> | |
| <button onclick="cleara()">Clear</button> | |
| </div> | |
| </main> | |
| <script> | |
| const result = document.getElementById('result'); | |
| function append(value){ | |
| result.value += value; | |
| } | |
| function calculate() { | |
| try { | |
| result.value = eval(result.value); | |
| } catch(error) { | |
| result.value = "Error"; | |
| } | |
| } | |
| function cleara(){ | |
| result.value = ""; | |
| } | |
| </script> | |
| </body> | |
| </html> |
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