On: How necessary are var, let, and const?

[EugeneOZ]

if value of constant can be changed, it's not constant. In my understanding. And by Wikipedia: http://en.wikipedia.org/wiki/Constant_(computer_programming)

[agumonkey → EugeneOZ]

That's typical computer lingo / semantic issue. the `const` mean shallow/pointer constant, not deep/structurally constant.