Hello! i want to replace all instances of this list with a “o” string if the value is not “-1”, can anyone help out? [image] Kind Regards :slight_smile:

hello [image] Mr. Jacob’s solution is more efficient cordially christian.stan

A simple if statement in a code block will do: val == “-1”? v: “o”;

This worked! Thank you so much!

It’s definitely more efficient ▶ (if you ever had trouble writing) cordially christian.stan

I am still new to Dynamo, having trouble to write in code block :slight_smile: Thank you so much!

[image] DesignScript: A Robust Dive into the Language Underlying Dynamo DesignScript If you are curious about using DesignScript inside of Dynamo, but the resources available are not quite up to your liking, then come check out https://github.com/Amoursol/dynamoDesignScrip…

Thanks a bunch! i will be checking it out!

I’m a little confused; I set up this ReplaceByCondition as below, but it is telling me that the “condition” input requires a Function input as opposed to a boolean. [image]

The function should be something like the < node without the X input (or whichever input is the list in which you want to replace something). Without seeing the input context we can’t directly help if you’re looking for something else though. Perhaps some design script ali g the lines of a<5? “NaN”…

Replace in list By Condition

Revit

Marcel_Rijsmus August 9, 2023, 7:01pm 8

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Replace in list By Condition

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