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How do I set up a simple delegate to communicate between two view controllers?
...nto your SecondVC
protocol DataDelegate {
func sendData(data : String)
}
class ViewControllerB : UIViewController {
//Declare the delegate property in your SecondVC
var delegate : DataDelegate?
var data : String = "Send data to ViewControllerA."
over...
How to scroll up or down the page to an anchor using jQuery?
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@Rob javascript does not have string interpolation, so using + with strings or vars concatenates them, like: "#some_anchor". Really, the second concat anchor_id + "" is not needed, I believe.
– onebree
Sep 26 '16 at ...
Count the items from a IEnumerable without iterating?
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Just adding extra some info:
The Count() extension doesn't always iterate. Consider Linq to Sql, where the count goes to the database, but instead of bringing back all the rows, it issues the Sql Count() command and returns that result ...
#pragma pack effect
...ing a DWORD at an address which isn't divisible by 4 requires at least one extra CPU cycle on a 32 bit processor. So, if you have e.g. three char members char a, b, c;, they actually tend to take 6 or 12 bytes of storage.
#pragma allows you to override this to achieve more efficient space usage, a...
How to convert Linux cron jobs to “the Amazon way”?
...ntab. There is a case study at the end that helped me understand what that extra complexity buys you. I would suggest watching the case study and considering your requirements for scalability and fault tolerance to decide whether you should migrate from your existing crontab solution.
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ASP.NET MVC - passing parameters to the controller
...lt ViewNextItem(int? id) makes the id integer a nullable type, no need for string<->int conversions.
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Is there a method to generate a UUID with go language
...n my system (Ubuntu 15.10) I also needed to run the command output through strings.Trim(string(out)) to remove the newline character, otherwise it was inputted up as a trailing ? character in the filesystem.
– gregtczap
Feb 24 '16 at 1:06
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How to count total lines changed by a specific author in a Git repository?
...y long-liner! This spot of awk swabbed everyone's deck (accurate, fast, no extra weird output). Not surprising, considering this is the sort of thing awk was designed for... Too bad you were so late to the party.
– zxq9
Oct 15 '12 at 18:41
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In PHP, what is a closure and why does it use the “use” identifier?
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ohhhhhhhh, so the Uses is used to pass in extra variables, I thought it was some funny assignment. Thanks!
– SeanDowney
Jul 1 '09 at 20:31
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Installing Python 3 on RHEL
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There is no extra cost. RH Software Collections are part of all RHEL developer subscriptions and most RHEL subscriptions. No-cost RHEL development subscriptions can be obtained from developers.redhat.com/download. These are real RHEL su...