How does TiddlyWiki save its changes to itself on the local file system? And how does TiddlyWiki keep the each tiddler's change until "Save Changes" is executed?
I want to understand the mechanisms. But I cannot figure it out from the source code.
Could you help insufficient-knowledge-of-JavaScript people like me?
Thank you,
In general? Poorly. The TiddlyWiki web site has details, but in brief:
TiddlyWiki allows a wiki to be saved by generating a new HTML file in Javascript which represents the saved contents of the wiki, and presenting this to the user as a download. The user must explicitly replace the old file with the new downloaded copy for this to work properly.
The TiddlyFox extension for Firefox explicitly allows a TiddlyWiki HTML file to overwrite itself. Maybe. (The comments on the extension suggest this may not even work properly anymore.)