Only the simple question in the title

This is a common misunderstanding of the ScopeIf node as well as how Dynamo graphs execute. ScopeIf has a very specific purpose: execute the one conditional branch that matches the test condition. In your example, with the test condition being true, the addition node gets executed and the subtracti…

@faramawy , good question #local varaible outside if nums = IN[0] OUT = [] for i in nums: if(i==2): b = i+2 OUT.append(b) else: x = i +10 OUT.append(x) Scope of the variable initialised in the if statement - Studytonight In this article, we …

if nodes execute both branches of their input scope if nodes do not.

Thanks, but i guess you are taking about python, but i was asking about dynamo nodes, as there are a node called (If) and another nodes is called (Scope If) and actually i couldn’t understand the answer through you example, could you please simplify it.

sorry, didn’t understand this either, i feel embarrassed :frowning:

@faramawy , check out the dictionary! https://dictionary.dynamobim.com/#/Core/Logic/Action/ScopeIf

ok, and i red this before, and it seems to be the same as (If) node does, am i wrong ?

[image] How to understand ScopeIf? DesignScript ScopeIf is typically meant for use inside custom nodes. It often fails when used in the graph environment (though it can work if used carefully). The purpose of ScopeIf is to only execute the nodes connected to the conditiona…

do you mean that (Scope IF) node is the stable version of (If) node ?

Nope. Both are stable. Both do exactly what they’re supposed to do. They have different use cases as explained in the linked post. If there’s something specific you’re trying to do we can probably tell you which node to use and why. If you’re just generally interested then I’d suggest doing some mo…

You know what, i did a simple test inspired by what you said, and i think i understood something but can you tell me what is happening here ? [image]

What is the difference between If / Scope If nodes?

Revit

Nick_Boyts March 9, 2023, 9:57pm 8

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What is the difference between If / Scope If nodes?

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