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Part IV: Appendixes > Nested Circuits

Nested Circuits

The fuseaction variable always contains two values in what we refer to as a compound fuseaction. The first part determines the circuit that contains that fuseaction, and the second part is the actual fuseaction.

If a fuseaction is called in a circuit below the root, the fbx_settings.cfm file is run in the root as well as in every other circuit that is a parent of the target circuit. If a circuit is a sub-circuit, nested three deep from the root, then a total of four fbx_settings.cfm files are run, enabling a system of inheritance of variables. Nested circuits concepts are discussed in Chapter 8, “Nesting Circuits.”


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