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>`a | b` can be written as: `if !a && b { a = true }`

`a || b` ...

The repository does have multiple cases of `a || b` and none of the `a = true` kind, so perhaps the author realized it after writing this blog post.

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This one tripped me up too. I'm guessing he meant `a |= b`.

Of course he meant that. My point was that `if !a && b { a = true; }` is a silly way to write `a = a || b;`

It's right on the line wrap, but it actually says `a = a | b`. At least right now, not sure if they edited it.

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