Created
January 8, 2025 02:13
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The Mask, a simple money mask which keeps the cursor in the same relative position
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Money Input Mask</title> | |
| <style> | |
| input { | |
| font-size: 18px; | |
| padding: 10px; | |
| width: 100px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <input type="text" id="moneyInput" placeholder="0,00" /> | |
| <script> | |
| document.getElementById('moneyInput').addEventListener('input', function(e) { | |
| let input = e.target; | |
| let value = input.value.replace(/\D/g, ''); // Remove non-numeric characters | |
| let cursorPosition = input.selectionStart; | |
| let oldValueLength = input.value.length; | |
| // Update value and cursor position accordingly | |
| value = (value / 100).toFixed(2) + ''; // Divide by 100 to get cents and convert to string | |
| value = value.replace(".", ","); // Replace decimal point with a comma | |
| value = value.replace(/(\d)(?=(\d{3})+\,)/g, '$1.'); // Add thousand separators | |
| input.value = value; | |
| let newValueLength = input.value.length; | |
| // Adjust cursor position to stay in the same relative place | |
| cursorPosition = Math.max(cursorPosition + (newValueLength - oldValueLength), 0); | |
| input.setSelectionRange(cursorPosition, cursorPosition); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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