Beginner here: how to I use the following code (stand alone) in yaml,i.e. KEY: "moment().format(" dddd");"?

[Squirenet6]

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What I’m trying to do

Things I have tried

Attempting to use the code “moment().format(” dddd");" assigned to the KEY in Yaml at the top of a Template note. I’m sure I’ve taken the code snipe OUT OF IT’S CONTEXT, but I do need an example how to use it in a Template note (Templater).

[Mephi]

In a Templater template you’d put this instead:

<% tp.date.now("dddd") %>

[Pch]

For frontmatter/YAML/Properties, I tend to use something like:

<% "---" %>
keyOne: <% tp.date.now("dddd") %> 
keyTwo: <% moment().format("dddd") %> 
<% "---" %>

(where both <% "---" %> are meant to prevent Obsidian from trying to parse the weird looking YAML of the template )

… which when applied to an empty note using the command Templater: Open insert template modal and selecting the template containing the snippet above, outputs in Source Mode (at the time of this post)

---
keyOne: Monday 
keyTwo: Monday 
---