12 lines
462 B
JavaScript
12 lines
462 B
JavaScript
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function validateFileInput() {
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const fileInput = document.querySelector('input[type="file"]');
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const filePath = fileInput.value;
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const allowedExtensions = /(\.xlsx|\.xls)$/i;
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if (!allowedExtensions.exec(filePath)) {
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alert("Please upload a valid Excel file (.xlsx or .xls only).");
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fileInput.value = '';
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return false;
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}
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return true;
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}
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