4 ms·

That's why some newer languages have 'const are the default'.

• Tommstein 3y ago
  I'm pretty sure it's the reference that makes the data not be copied.
  • nuancebydefault 3y ago
    Copying the data to a const makes little sense in this case. The extra & choice that has emerged makes things more complicated than needed. The sad faith of this old language.
  • nly 3y ago
    Without the const the key would still be const.