[swift-users] OptionSet as Sequence

J.E. Schotsman jeschot at xs4all.nl
Mon Mar 13 11:51:34 CDT 2017


On 12 Mar 2017, at 23:23, Zhao Xin <owenzx at gmail.com> wrote:

> I don't see the needs to call `for domain in domains` with `domains:OptionSet`. If a parameter want an OptionSet, why not just use`domains` directly instead of `domain`?

You are right, I was writing bad code.
When working with option sets you always end up writing code like

if options.contains(flag1) {...}
if options.contains(flag2) {…}
...

No need for a for-in loop. 
Please ignore my posting.

Jan E.


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