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How can I print literal curly-brace characters in python string and also use .format on it?
...ying to format a small JSON for some purposes, like this: '{"all": false, "selected": "{}"}'.format(data) to get something like {"all": false, "selected": "1,2"}
It's pretty common that the "escaping braces" issue comes up when dealing with JSON.
I suggest doing this:
import json
data = "1,2"
my...
Simple argparse example wanted: 1 argument, 3 results
...ommand line or meddle with formatting lines on the screen or change option characters. All I want to do is "If arg is A, do this, if B do that, if none of the above show help and quit" .
...
Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?
...er:
To use it after installed, right click your res/drawable folder and select New > Batch Drawable Import:
Then select your image via the + button and set the Resolution to be xxhdpi (or whatever the resolution of your source image is).
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Difference between jQuery parent(), parents() and closest() functions
I have been using jQuery for a while. I wanted to use the parent() selector. I also came up with the closest() selector. Could not find any difference between them. Is there any? If yes, what?
...
How can I easily convert DataReader to List? [duplicate]
... writing an extension method for this:
public static IEnumerable<T> Select<T>(this IDataReader reader,
Func<IDataReader, T> projection)
{
while (reader.Read())
{
yield return projection(reader);
}
}
You can then use LINQ...
IN vs OR in the SQL WHERE Clause
...h are nearly instant. When the column is not indexed I got these results:
SELECT COUNT(*) FROM t_inner WHERE val IN (1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000);
1 row fetched in 0.0032 (1.2679 seconds)
SELECT COUNT(*) FROM t_inner WHERE val = 1000 OR val = 2000 OR val = 3000 OR val = 40...
How to enable NSZombie in Xcode?
...cheme".
To edit the scheme and turn on zombies:
In the "Product" menu, select "Edit Scheme".
Go to the "Run Foo.app" stage in the left panel, and the "Arguments" tab on the right.
Add NSZombieEnabled to the "Environment Variables" section and set the value to YES, as you could in Xcode 3.
In...
Creating a comma separated list from IList or IEnumerable
...var PurchaseBooks = AmazonContainer.Where(p => p.Author == "Jon Skeet").Select();
– Zachary Scott
Oct 31 '10 at 16:26
3
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Can I write into the console in a unit test? If yes, why doesn't the console window open?
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In V2017 (Community), go to "test explorer", select the test result item in the list, then click on the link "output" on the other window (test result window?). Since it will probably be truncated, use the "copy all" and past somewhere else.
– heri...
How to disable the highlight control state of a UIButton?
I've got a UIButton that, when selected, shouldn't change state when being touched.
The default behaviour is for it to be in UIControlStateHighlighted while being touched, and this is making me angry.
...