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> substantially faster

Than what? In languages with good debugger support (see JVM/Java) it can be far quicker to click a single line to set a breakpoint, hit Debug, the inspect the values or evaluate expressions to get the runtime context you cant get from purely reading code. Print statements require rebuilding code and backing them out, so its hard to imagine that technique being faster.

I do use print debugging for languages with poor IDE/debugger support, but it is one big thing I miss when outside of Java.



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