Rimuovere gli spazi vuoti in Dart

String product = "COCA COLA";
print('Product id is: ${product.replaceAll(new RegExp(r"\s+\b|\b\s"), "")}');

String name = '4 ever 1 k g @@ @';
print(name.replaceAll(RegExp(r"\s+"), ""));

String name = '4 ever 1 k g @@ @';
print(name.replaceAll(' ', '');