Hello!
I'm a little confused when trying to use variables.
Mainly, I have a lot tag tiddlers, and I like when they contain
*toc-selective-expandable*, so I can effectively navigate through and grasp
the contents of my wiki. But when creating new tag each time I need to
copy/paste and then modify the name in toc, so it shows proper list.
Therefore I'm interested in creating a *template*:
```
<$macrocall $name="toc-selective-expandable" tag="CurentTiddlerNameHere"
sort="sort[created]" />
```
but nothing I try works :/ The following things properly return the current
tiddler name, when used by themselves, but not when put in macrocall:
```
<<currentTiddler>>
<$text text=<<currentTiddler>>/>
<$text text={{{ [<currentTiddler>] }}} />
```
So first of all, *how can I use such variable in macrocall?*
And the other thing, what is the difference between those 3 currentTiddler
notations? I have also seen something like *!!title*, or something like
this, so I would be most grateful if someone could explain to me what's
going on.
Oh and btw. I also happen to struggle with usage of mathematical operators.
I'm interested in defining 2 variables, let's say x=2 and y=3, and be able
to perform x+y to obtain the result. Again, I would be most thankful for
pointing out how to do it.
Have a great day!
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