How is error handling done in Julia?

Recipe Objective: How is error handling done in Julia?

This recipe explains how error handling is done in Julia.
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Error Handling

Julia provides a try/catch statement which can be helpful in error handling. Try/catch statement allows exception handling in an organized manner without breaking the code. Generally, the try/catch statement is slower than using conditional branching. Try/catch statement allows the exception to be saved in a variable.

calc_cbrt(a) = try
    cbrt(a)
catch b
    if isa(b, DomainError)
       cbrt(complex(a, 0))
    elseif isa(b, BoundsError)
       cbrt(a)
    end
end
calc_cbrt(8)
calc_cbrt(-8)