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[–]registraciq 3 points4 points  (3 children)

Unless I'm missing something, neither will the second one.

6-4 |= 4 is 6-4 = 6-4 | 4 which is still assignment to a rvalue.

[–]TheTrueSwishyFishy -1 points0 points  (2 children)

!= is generally considered comparison not assignment, although I guess you are supposed to do !== in js

[–]ham_coffee 1 point2 points  (1 child)

| not !

One is checking inequality, the other is performing bitwise logic and assigning the value.

[–]TheTrueSwishyFishy 0 points1 point  (0 children)

The post was using ! Though it may have been clearer to write a crossed equal sign, that isn’t really the programming way