Create links to a date array using Templater

[cjt3]

What I’m trying to do

I am trying to create a listing of links to daily notes that fall within a specified range. I had previously found the following for links to all days within a given month:

<%* const currentMonthDates = new Array(
moment(tp.file.title,'YYYY-MM').daysInMonth()).fill(null).map(
(x, i) => moment(tp.file.title,'YYYY-MM').startOf('month').add(i,'days').format("- [[[]YYYY-MM-DD[#]YYYY-MM-DD[|]DD/MM [⦗]ddd[.⦘]]]")).join('\r\n') %>
<%* tR +=  currentMonthDates %>

This works great for that purpose, but what I would like to do now is have a template that creates a listing of dates within and including dates I specify in frontmatter. For example:

This frontmatter:

start: 2023-07-05
end: 2023-07-08

Would yield:

• [[2023-07-05]]
• [[2023-07-06]]
• [[2023-07-07]]
• [[2023-07-08]]

Things I have tried

I have searched high and low through the forums, but haven’t found anything for this specific issue. I have also tried tinkering with the template that lists days in a month, but my programming ability is near non-existent.

Any help would be greatly appreciated.

[kenlefeb]

Here, try this code:

<%*
const start = new moment(tp.frontmatter["start"]);
const end = new moment(tp.frontmatter["end"]);
const days = (end - start) / (1000 * 60 * 60 * 24);

for (let thisDay = 0; thisDay < days; thisDay++) {
	const thisDate = start.add(thisDay, 'days'); %>
- [[<% thisDate.format('YYYY-MM-DD') %>]]<%* } %>

Your code was trying to create an array of all the links in memory and then spitting it all out at once, whereas I find it’s usually easier to troubleshoot my template code if I keep it as simple as possible. In this case, I’m looping through the dates in your range and just rendering each date individually.

[holroy]

It could be worth while to check of those generated links actually exists or not, but then again that would depend on the use case.

But I do believe this approach to be a little nicer to the device creating the date range.

[cjt3]

Thank you so much for the help with this. I’m not completely sure why, but when I used your code as written, it gave me the following result:

• [[2023-07-05]]
• [[2023-07-06]]
• [[2023-07-08]]
• [[2023-07-11]]

So it was essentially adding 1, then 2, then 3, and so on. Not sure why that was, but by changing the next to last line to

const thisDate = start.add(1, 'days'); %>

it worked the way I wanted it to. Because of this change, I also had to adjust the starting point to one day earlier). Your logic seems right, so I’m not sure why it worked the way it did.

Regardless, I got to the result I was looking for so thank you!

[kenlefeb]

Ha ha! Yes, that’s definitely a bug! Good catch!

That’s what happens when I try to write code off the top of my head without actually testing it for you.

[holroy]

It’s not so much a bug as a feature on how moment changes the date you’re working on, and not creating a new date each time.

So at the end of this script your start had changed so its value is equal that of end. Not a problem in this context, but something to be aware of in other contexts.

[kenlefeb]

Yeah, it’s a bug if it doesn’t pass the test.