This page runs a series of a examples using the new collection objects in
ECMAScript 6 without any transpilation. This means your browser must
WeakSet APIs in order to successfully run the code. Open up
your debugging console to view the output.
For more information on how these new collection APIs work and their level of support, check out the New Collections article that is part of the Learning ES6 series.
Source code | Babel example | Traceur example | Index of examples