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How to perform Callbacks in Objective-C
...LConnectionDelegate. They are usually used to show Downloading many images from server asynchronously etc.
NSNotifications : NotificationCenter is one of features of Objective C which used to notify many receiptants at time when event occur.
Blocks : Blocks are more commonly used in Objective C prog...
Django CharField vs TextField
...problem and understood an unpleasant strange difference:
when I get an URL from user as an CharField and then and use it in html a tag by href, it adds that url to my url and that's not what I want. But when I do it by Textfield it passes just the URL that user entered.
look at these:
my website add...
How to compare objects by multiple fields
...
(from Ways to sort lists of objects in Java based on multiple fields)
Working code in this gist
Using Java 8 lambda's (added April 10, 2019)
Java 8 solves this nicely by lambda's (though Guava and Apache Commons might still...
How can I safely encode a string in Java to use as a filename?
I'm receiving a string from an external process. I want to use that String to make a filename, and then write to that file. Here's my code snippet to do this:
...
How to search for “R” materials? [closed]
...ting examples, this returns Russ Lenth's "R code used in Netflix analyses" from Luke Tierney and Kate Cowles "High Performance Computing in Statistics" course.
If you wanted examples of bootstrapping, this returns many scripts, most of which look very relevant.
I usually do my basic R searches wit...
What is the advantage of using Restangular over ngResource?
...I found Restangular's RequestInterceptor quite handy to remove some fields from the object before making the Request. Most REST webservices i am currently working with don't expect the id in the object data in a PUT request for example, just in the url. Generally they don't expect extra data fields ...
How can I create a directly-executable cross-platform GUI app using Python?
...Toolkit. I've found it easier to wrap my mind around than Tkinter, coming from pretty much no knowledge of GUI programming previously. It works pretty well and has some good tutorials. Unfortunately there isn't an installer for Python 2.6 for Windows yet, and may not be for a while.
...
What does a type followed by _t (underscore-t) represent?
...e new version, which might be a problem. Restricting the _t usage prevents from refactoring the code. Thus, if you aim to a POSIX compliancy, you should definitely avoid the _t as the Standard states it.
Side note: personally, I try to stick to POSIX because I think it gives good basics for clean p...
How to autosize a textarea using Prototype?
...>') + ' '; makes sure you don't get jerky behaviour when going from an empty new line at the end of the textarea to a non-empty one, since the hidden div makes sure to wrap to the nbsp.
– unwitting
Feb 19 '15 at 21:36
...
Check if a string contains a string in C++
... count is set, but the length of strings within each haystack is increased from 10 in the beginning to 10240 in the end. Most of the time the program spends actually generating random strings, but that is to be expected.
The output is:
Generating 200000 random haystacks of size 10
Starting std::st...