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Using a dispatch_once singleton model in Swift
...o work out an appropriate singleton model for usage in Swift. So far, I've been able to get a non-thread safe model working as:
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What is the most useful script you've written for everyday life? [closed]
... 700 MS of each other as a 0 and ignore the rest; so I could use my laptop before I get around to replacing the keyboard.
Wow; I didn't know this would be so popular :p
As for how - Microsoft exposes a nice little API feature called Hooks.
Using that hook; I was able to write a "filter" that did ...
Make the current Git branch a master branch
I have a repository in Git. I made a branch, then did some changes both to the master and to the branch.
14 Answers
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Regex Email validation
...il address to the
MailAddress.MailAddress(String) class constructor.
public bool IsValid(string emailaddress)
{
try
{
MailAddress m = new MailAddress(emailaddress);
return true;
}
catch (FormatException)
{
return false;
}
}
This saves you a lot ...
android fragment- How to save states of views in a fragment when another fragment is pushed on top o
In android, a fragment (say FragA ) gets added to the backstack and another fragment (say FragB ) comes to the top. Now on hitting back FragA comes to the top and the onCreateView() is called. Now I had FragA in a particular state before FragB got pushed on top of it.
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Convert varchar to uniqueidentifier in SQL Server
A table I have no control of the schema for, contains a column defined as varchar(50) which stores uniqueidentifiers in the format 'a89b1acd95016ae6b9c8aabb07da2010' (no hyphens)
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How do you run a single query through mysql from the command line?
I'm looking to be able to run a single query on a remote server in a scripted task.
5 Answers
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Can media queries resize based on a div element instead of the screen?
I would like to use media queries to resize elements based on the size of a div element they are in. I cannot use the screen size as the div is just used like a widget within the webpage, and its size can vary.
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How to check if field is null or empty in MySQL?
...ELECT IF(field1 IS NULL or field1 = '', 'empty', field1) as field1
from tablename
or
SELECT case when field1 IS NULL or field1 = ''
then 'empty'
else field1
end as field1
from tablename
If you only want to check for null and not for empty strings then you can al...
ROW_NUMBER() in MySQL
Is there a nice way in MySQL to replicate the SQL Server function ROW_NUMBER() ?
24 Answers
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