Dataview and a function with a switch that applies frontmatter data of the note it's in

Help
1

Hi guys!

What I’m trying to do

For some notes, I would like to use a function that calculates on property values given in the yaml frontmatter of the notes. The function should only work within the file and calculate based on a condition given by the data.

PropertyString: "A"
PropertyNumber1: 10
PropertyNumber2: 20

I would like to use a function that is active as soon as all relevant properties are provided in the frontmatter. The function should operate based on a condition given by PropertyString. I try to outline what it should do below:

// Look if all neccessary data is provided in yaml frontmatter: 
// 1. `PropertyString` 2. `PropertyNumber1` 3. `PropertyNumber2`
// Pull those and operate conditionally based on 1. `PropertyString`

function MyFunc() {
if (PropertyString === "A") {
result = PropertyNumber1 - PropertyNumber2;
	} else if (type === "B") {
	result = PropertyNumber2 - PropertyNumber1;
		}
}

After the function is applied, I would like to use the result to make further calculations and in the end have a neat table of results…

Things I have tried

I tried to get this done using normal dataview using the choice() function but I was not successful. Would you please help me to get my foot in the door with dataviewjs?

Cheers!

2

Here’s a very ugly Dataview query that essentially matches the functionality of your code block…

```dataview
TABLE PropertyString, choice(regexmatch("A",PropertyString),PropertyNumber1 - PropertyNumber2,choice(regexmatch("B",PropertyString),PropertyNumber2 - PropertyNumber1,"Not A or B")) as "Result"
WHERE contains(file.name,this.file.name)

If you still want the dataviewjs approach, let us know.
Hint: You can use AI tools like copilot to help you write dataviewjs and dataview code blocks.