Use JS console to select component instances
and change their dataset properties.
hello component
› document.querySelector('#hello').dataset
› document.querySelector('#hello').dataset.name = 'funponent'
Another instance of hello
› document.querySelector('#another-hello').dataset
› document.querySelector('#another-hello').dataset.count = 42
funponent understands SVG
› document.querySelector('#svg').dataset
› document.querySelector('#svg').dataset.count = 81