Repeat the previous exercise, but use a conditional $set widget. It's OK if the behavior when the at field is empty, rather than missing, differs from the previous exercise.
Go to answer: Ex:ConditionalSetAt/answer
This is a stripped-down version of a single section of Grok TiddlyWiki, optimized for fast loading and readability by search engines. Some features are missing.
For the full Grok TiddlyWiki experience, please visit the wiki version of this page.
Repeat the previous exercise, but use a conditional $set widget. It's OK if the behavior when the at field is empty, rather than missing, differs from the previous exercise.
Go to answer: Ex:ConditionalSetAt/answer