>From my understanding of the docs and poking around while building my Json plugin, I would say that yes, they are important.
I still find myself looking up almost every widget to see if I am using the right syntax. The trend that I have seen is that parameters that start with $ are "named parameters", those that do not are collected into a 'paramObject' internally, and are "optional parameters". I'm not sure if this can be generalized exactly like that..... but is how I think about them. This can be seen clearest in the <$action-setfield> widget. If you don't have $tiddler & $field it won't work ($value is optional). If you have $tiddler, but no $field or $value (etc), but you do have a set of optional parameters, such as <$action-setfield $tiddler=<<currentTiddler>> name="the Name" date="the Date" location="the Location"> then those are interpreted as !!field = "value". AttributeDescription $tiddler The title of the tiddler whose fields are to be modified (if not provided defaults to the current tiddler <https://tiddlywiki.com/#Current%20Tiddler>) $field Optional name of a field to be assigned the $value attribute $index Optional index of a property in a data tiddler <https://tiddlywiki.com/#DataTiddlers> to be assigned the $value attribute $value The value to be assigned to the field or index identified by the $field or $index attribute. If neither is specified then the value is assigned to the text field. If no value is specified, $field or $index will be deleted. $timestamp Specifies whether the timestamp(s) of the target tiddler will be updated (*modified* and *modifier*, plus *created* and *creator* for newly created tiddlers). Can be "yes" (the default) or "no" *{any attributes not starting with $}* Each attribute name specifies a field to be modified with the attribute value providing the value to assign to the field On Wednesday, February 20, 2019 at 8:36:25 AM UTC-8, @TiddlyTweeter wrote: > > I'm just starting to (vaguely) understand TW code... > A problem is variations I see in used syntax ... especially about when you > use $ or not. I get confused. > > Is it ... ? > > <$link to="hobbit" ... > > or is it ... ? > > <$link $to="hobbit"... > > Is it ... ? > > <$action-sendmessage $message="tm-close-tiddler" > $param={{{[has[draft.of]field:draft.of<item>]}}}/> > > or is it ... > > <$action-sendmessage $message="tm-close-tiddler" > param={{{[has[draft.of]field:draft.of<item>]}}}/> > > (Thanks to Thomas for that one: > https://groups.google.com/d/msg/tiddlywiki/tUwDeDPQyDc/ie4Zyhx8BQAJ) > > Just trying to get clearer > Josiah > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/8db3dd3f-9553-4280-87ac-7cacff6ba505%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
