in.jl

function f(x, N)
    res = false
    for n=1:N
        res = res || (x==1 || x==2)
    end
    res
end

function g(x, N)
    res =false
    for n=1:N
        res = res || (x in (1, 2))
    end
    res
end

@time f(1, 10^7)
  16.615 milliseconds (4 allocations: 144 bytes)
@time g(1, 10^7)
14.285 milliseconds (4 allocations: 144 bytes)