That code looks nice and clean, and might do everything Antaeus wants ...
EXCEPT that it can't (or at least I don't think it can) be used inside a
button the way he wants.
The solution is to rewrite the javascript code so that it accepts values
from <$set> variables outside instead of parameters.
Someone could eliminate the parameters and instead put these lines just
inside the run() function:
var format = this.getVariable("format") ;
var delay = this.getVariable("delay") ;
var ts = this.getVariable("ts") ;
I haven't tried it though. If anyone tries this, they should be sure to
back up their TW. A single mistake can cause the red-block-of-javascript
doom to pop up.
Mark
On Tuesday, October 6, 2015 at 9:58:14 PM UTC-7, Andrew wrote:
>
> How about
> http://t5a.tiddlyspot.com/#%24%3A%2Fplugin%2Fajh%2Ftiddlytime%2FDateTime.js
>
> Happy Connecting. Sent from my Sprint Samsung Galaxy S® 5
>
>
> -------- Original message --------
> From: Antaeus Feldspar <afel...@gmail.com <javascript:>>
> Date: 10/06/2015 7:13 PM (GMT-07:00)
> To: TiddlyWiki <tiddl...@googlegroups.com <javascript:>>
> Subject: Re: [tw] [TW5] How to create a button that replaces a field value
> based on the current field value?
>
> Actually, perhaps I should share what my macro will do - I went looking to
> see if there was an existing plugin that handled such things, and didn't
> find one, but that could be just because I wasn't looking in the right
> places.
>
> My macro will take a 17-character string as used in a Date field as its
> first parameter, and as its second, a string indicating an amount of time
> to increment it ("1d", for instance, would be one day.) It will calculate
> and return the incremented date. With being able to read, modify, and
> write back a date values, I can create easy "reschedule" buttons for task
> tiddlers.
>
> To tell the truth, there are some terrific JS libraries that do all of
> that and much more, and I was hoping there would be a simple way they might
> be incorporated into TW5, but if there is, I haven't found documentation
> for it. Is there such a way? Or has someone already created awesome
> date-manipulation plugins?
>
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