Swift runs as fast as C code without memory safety issues (in C someone has to worry for memory management) and it is easier to learn . This is achieved due to the LLVM compiler (behind Swift) which is very powerful. Python Interoperability,using python with Swift.
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Swift was built with performance in mind. Not only does its simple syntax and hand-holding help you develop faster, but it also lives up to its name: As stated on apple.com, Swift is up to 2.6x faster than Objective-C and 8.4x faster than Python .
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