RequireJS does more work. All of those projects concentrate on loading scripts asynchronously and in parallel. However, to the best of my knowledge, they do no

RequireJS does more work. All of those projects concentrate on loading scripts asynchronously and in parallel. However, to the best of my knowledge, they do not provide sane, standardized (standardized meaning CommonJS compatible in this case) namespacing, modularization and dependency management into your Javascript.