26 lines
733 B
Julia
26 lines
733 B
Julia
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# Julia comes with a lot of useful macros. Youv'e already seen the @show macro.
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x = 5
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@show x
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# Macros are a small part of julias huge metaprogramming system.
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# There exists a bunch of useful macros, both in julia itself, and in
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# different packages. A macro is basically a function that takes in a list
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# of arguments and generates a code block at compiletime. It is possible
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# to create your own macros, but that takes some reading up on the
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# metaprogramming section in the julia docs.
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# Probably one of my most used macros is the @time macro
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reallyslowfunction() = sleep(2)
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@time reallyslowfunction()
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# If you want to time a whole code block this is done with a "begin" block
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@time begin
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# Slow code
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sleep(1)
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end
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