ReferenceError:35:Invalid left hand side for assignment
1++
^
ReferenceError:42:Invalid left hand side for assignment
1--
^
ReferenceError:49:Invalid left hand side for assignment
++1
  ^
ReferenceError:56:Invalid left hand side for assignment
--1
  ^
ReferenceError:35:Invalid left hand side for assignment
0++
^
ReferenceError:42:Invalid left hand side for assignment
0--
^
ReferenceError:49:Invalid left hand side for assignment
++0
  ^
ReferenceError:56:Invalid left hand side for assignment
--0
  ^
ReferenceError:35:Invalid left hand side for assignment
3.14++
^
ReferenceError:42:Invalid left hand side for assignment
3.14--
^
ReferenceError:49:Invalid left hand side for assignment
++3.14
  ^
ReferenceError:56:Invalid left hand side for assignment
--3.14
  ^
ReferenceError:35:Invalid left hand side for assignment
true++
^
ReferenceError:42:Invalid left hand side for assignment
true--
^
ReferenceError:49:Invalid left hand side for assignment
++true
  ^
ReferenceError:56:Invalid left hand side for assignment
--true
  ^
ReferenceError:35:Invalid left hand side for assignment
false++
^
ReferenceError:42:Invalid left hand side for assignment
false--
^
ReferenceError:49:Invalid left hand side for assignment
++false
  ^
ReferenceError:56:Invalid left hand side for assignment
--false
  ^
ReferenceError:35:Invalid left hand side for assignment
null++
^
ReferenceError:42:Invalid left hand side for assignment
null--
^
ReferenceError:49:Invalid left hand side for assignment
++null
  ^
ReferenceError:56:Invalid left hand side for assignment
--null
  ^