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Format a datetime into a string with milliseconds
... a datetime string from the date with milliseconds. This code is typical for me and I'm eager to learn how to shorten it.
...
iOS: How to store username/password within an app?
...me and password using:
[keychainItem setObject:@"password you are saving" forKey:kSecValueData];
[keychainItem setObject:@"username you are saving" forKey:kSecAttrAccount];
Get them using:
NSString *password = [keychainItem objectForKey:kSecValueData];
NSString *username = [keychainItem objectFo...
Linq to Sql: Multiple left outer joins
... I like this approach better than using all the into statements. Thanks for posting this!
– Bryan Roth
Mar 22 '10 at 21:57
7
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How to manage local vs production settings in Django?
What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is...
How to manually create icns files using iconutil?
...nt-ready, high-resolution icns files. (You can find complete documentation for this tool by entering man iconutil in Terminal.) Using this tool also compresses the resulting icns file, so there is no need for you to perform additional compression.
To convert a set of icons to an icns file
...
Zip lists in Python
... each, the result has twenty elements. Each element is a three-tuple.
See for yourself:
In [1]: a = b = c = range(20)
In [2]: zip(a, b, c)
Out[2]:
[(0, 0, 0),
(1, 1, 1),
...
(17, 17, 17),
(18, 18, 18),
(19, 19, 19)]
To find out how many elements each tuple contains, you could examine the ...
How to avoid “if” chains?
...
@RobAu: Then it will be good for the junior programmers to finally see code that relies on short-cut evaluation and may prompt them to reseach this topic which in turn would help them on their way to eventually become senior programmers. So clearly a win...
Flex-box: Align last row to grid
...s have padding to space them and the combined percentage widths equal 100% for each set of 4. In this codepen I removed justify-content: space-between; from .grid and removed .grid:after and it works the same. Now if you tried something like this it totally breaks. Notice the widths for each set ...
Sorting Python list based on the length of the string
...whatever the key function returns.
EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass len directly as the key parameter to the function, thus eliminating the need for a lambda:
xs.sort(key=len)
And as Ruslan points out below, you can also use the built-in sorted functio...
How to make a phone call in android and come back to my activity when the call is done?
... ended. you will most likely need to trigger the listener actions to wait for a the call to start (wait until changed from PHONE_STATE_OFFHOOK to PHONE_STATE_IDLE again) and then write some code to bring your app back up on the IDLE state.
you may need to run the listener in a service to ensure ...