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capturing self strongly in this block is likely to lead to a retain cycle
... doesn't exist
}
}];
I have read this article many times. This is an excellent article by Erica Sadun on
How To Avoid Issues When Using Blocks And NSNotificationCenter
Swift update:
For example, in swift a simple method with success block would be:
func doSomeThingWithSuccessBlock(succes...
Is it a good idea to index datetime field in mysql?
...m/doc/refman/5.0/en/mysql-indexes.html
This makes your datetime column an excellent candidate for an index if you are going to be using it in conditions frequently in queries. If your only condition is BETWEEN NOW() AND DATE_ADD(NOW(), INTERVAL 30 DAY) and you have no other index in the condition,...
What is the most efficient way to store tags in a database?
...ble: Tags
Columns: Item_ID:int, Tag_Title:text[]
For more info, see this excellent post by Josh Berkus:
http://www.databasesoup.com/2015/01/tag-all-things.html
There are more various options compared thoroughly for performance and the one suggested above is the best overall.
...
ASP.NET MVC JsonResult Date Format
...-- so this format generally shouldn't be used for new development. See the excellent Json.NET library for a great alternative that serializes dates using the ISO-8601 format.
For ISO-8601 formatted JSON dates, just pass the string into the Date constructor:
var date = new Date(jsonDate); //no ugly...
What are the dark corners of Vim your mom never told you about? [closed]
...z -- it scrolls the screen to make this line appear in the middle. This is excellent for putting the piece of code you're working on in the center of your attention. Sibling commands -- zt and zb -- make this line the top or the bottom one on the sreen which is not quite as useful.
% finds and jump...
Find unique rows in numpy.array
...
Excellent! Curly braces or the set() function does the trick.
– Tian He
May 4 '16 at 15:51
2
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How to loop through all but the last item of a list?
...OP should have asked, i.e. traverse a list comparing consecutive elements (excellent SilentGhost answer), yet generalized for any group (n-gram): 2, 3, ... n:
zip(*(l[start:] for start in range(0, n)))
Examples:
l = range(0, 4) # [0, 1, 2, 3]
list(zip(*(l[start:] for start in range(0, 2)))) # =...
Is it possible to push a git stash to a remote repository?
...
@sehe Excellent script!! Two suggestions: 1) --reverse the final ref-list so that stashes are in the same order in target repo as in original. 2) End final for loop with git branch -D stash_$a (clean up as stashes are created) so t...
How can I run PowerShell with the .NET 4 runtime?
...uck on PowerShell v1.0 or v2.0, here is my variation on Jason Stangroome's excellent answer.
Create a powershell4.cmd somewhere on your path with the following contents:
@echo off
:: http://stackoverflow.com/questions/7308586/using-batch-echo-with-special-characters
if exist %~dp0powershell.exe.ac...
Learning Ruby on Rails
...hased that book and Agile Web Development with Rails; both books have been excellent.
Peepcode screencasts and PDF books have also been great for getting started; at $9 per screencast it's hard to go wrong. I actually bought a 5-pack.
Also check out the following:
Official Rails Guides
Railscas...