Melvin,
You could mimic the Javascript approach quite closely, Because my
Javascript is somewhat vague and it is more involved to add it to
tiddlywiki I always use other methods.
\define list-of-messages() [[Message 1]] [[Message 2]] [[Message 3]] [[
Message 4]]
or even
\define list-of-messages()
[[Message 1]]
[[Message 2]]
[[Message 3]]
[[Message 4]]
\end
And then you can use the set widgets select attribute to choose which
message to display. Since it is zero based use the new maths operators to
subtract one.
Maths operators work nicely inside the triple braces.
So *Untested* example
<code>
<$set name=dd value=<<now DD>> ><!-- I did not check if this works -->
<$set name=todays-message filter="list-of-messages" select={{{
[<dd>subtract[1]]
}}}>
<<todays-message>>
</$set></$set>
</code>
Regards
Tony
On Wednesday, September 18, 2019 at 10:20:58 AM UTC+10, Melvin wrote:
>
> This took me a while, but I found a way to create a message of the day
> generator which changes the message given on how many messages you have and
> what day of the month it is.
>
> You add the messages in [[]] and the code will do the rest :D
>
> The current 'bug' is that it will only allow you to have about 30
> messages, as it cannot display more messages of the day than there are days
> in the month.
>
> Copy/paste this Tiddler and see what message of the day you get!
>
> <style>
> .message-of-the-day {
> color: red;
> }
> </style>
>
> <$wikify mode="inline" name="dayofmonth_val" text=<<now DD>> >
> <$set name="messages" filter="
>
>
> [[Message 1]]
>
>
> [[Message 2]]
>
>
> [[Message 3]]
>
>
> [[Message 4]]
>
>
> ">
> <$set name="list_length" filter="[enlist<messages>count[]]">
> <$set name="list_index" filter="[<dayofmonth_val>remainder<list_length>]">
> <$list variable="result" filter="
> [enlist<messages>nth<list_index>]">
> <h1><span class="message-of-the-day">Message of the day:
> <<result>></span></h1>
> </$list>
> </$set>
> </$set>
> </$set>
> </$wikify>
>
>
> My question here is: is there any way to do this more efficient?
> In JavaScript this is the equivalent of:
>
> var messages = ["Message 1", "Message 2", "Message 3", "Message 4"]
> var result = messages[new Date().getDate() % messages.length]
> //and then display the result var in anyway you see fit
>
> Which would be so much easier to write.
>
> I guess I need to learn how to create JS macro's or something similar.
>
> What do you think?
>
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