When I write something like
var $fullName = $firstName + ' ' + $lastName;
Why do i have to have 2 '+' operators instead of just one? I thought you write it like
var $fullName = $firstName + ' ' $lastName;
You write it with two pluses because you are concatenating three strings: $firstName, a space and $lastName.
PPK has a good explanation of this: http://www.quirksmode.org/js/strings.html#conc
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