I just read a web comic about JavaScript that looked like a joke:

>>> var x = 42;
>>> x+1;
43
>>> var name = 42;
>>> name+1;
"421"

As it turns out, this is not a joke, but the actual behavior of JavaScript. Why do variables with name x and name name behave differently here?

Interestingly, Node.js yields other results than browsers: In Firefox and Edge, the result of name+1 is "421", but in Node.js, the result is 43.