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ProcessingJS.org/reference/preload/
Studio.ProcessingTogether.com/sp/pad/export/ro.9bTfM49wCIJza

How to remove array object when mouse pressed

As a general rule, load all of the assets your sketch is gonna use in setup(), before draw() begins, storing them in global variables. Classes should request already loaded assets rather than loading them on their own.

Strange Behavior Triggered by image() Function

Still, the best approach for assets is to load them all at once within setup(). After that, we can pass those already loaded assets as 1 of the arguments of our classes’ constructors.