Validation rules
new MultipleUpload('#demo-validation', {
uploadUrl: '/api/upload',
allowedExtensions: '.jpg,.png,.pdf',
allowedMimeTypes: 'image/*,application/pdf',
validateMimeByMagic: true,
maxFileSize: 5 * 1024 * 1024,
maxFiles: 5,
preventDuplicates: true,
customValidation: function(file) {
if (/\s/.test(file.name)) return 'Spaces are not allowed in file names.';
}
});