Sample Code:
Set < String > fields = new Set < String >();
for ( Schema.SObjectField objField : Schema.SObjectType.Account.fields.getMap().values() ) {
fields.add( objField.getDescribe().getName() );
}
for ( Account objAcc : [ SELECT Id, Name, Industry FROM Account LIMIT 1 ] ) {
if ( fields.contains( 'Name' ) ) {
System.debug( ( String ) objAcc.get( 'Name' ) );
}
if ( fields.contains( 'Invalid_Field' ) ) {
System.debug( ( String ) objAcc.get( 'Invalid_Field' ) );
} else {
System.debug( 'Field not found' );
}
}Output:
