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Creating a dynamic choice field
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@Ashok How could the CheckboxSelectMultiple widget be used in this instance? For the modelform especially.
– wasabigeek
Aug 14 '15 at 18:22
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Take screenshots in the iOS simulator
...click on 'Camera' icon/action button, on the top bar of simulator.
OR
Select Save Screen Shot menu item, from File menu.
File => Save Screen Shot
Use ⌘ + S to capture a screen shot.
(Use window + s, if you are using windows/non-apple keyboard).
See for more details: How to change s...
How to get the command line args passed to a running process on unix/linux systems?
...rgs, there will be no spaces between the arguments, because they have been converted to NULs.
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How to create a multiline UITextfield?
...tiline text.
In Interface Builder, add a UITextView where you want it and select the "editable" box. It will be multiline by default.
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Relative frequencies / proportions with dplyr
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Error in bind_rows_(x, .id) : Column am` can't be converted from numeric to character`
– f0nzie
Aug 6 '18 at 23:41
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How do I format a number in Java?
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When you want to convert the rounded value as string, this is one of the way. Other is using DecimalFormat. And DecimalFormat is slightly faster than String.format. Simple System.currentTimeMillis diff reveals that.
– ma...
Adding values to a C# array
...runs = 0; runs < 400; runs++)
{
termsList.Add(value);
}
// You can convert it back to an array if you would like to
int[] terms = termsList.ToArray();
Edit: a) for loops on List<T> are a bit more than 2 times cheaper than foreach loops on List<T>, b) Looping on array is around ...
How to extract numbers from a string and get an array of ints?
...)) {
int n = Integer.parseInt(m.group());
// append n to list
}
// convert list to array, etc
You can actually replace [0-9] with \d, but that involves double backslash escaping, which makes it harder to read.
shar...
Difference between partition key, composite key and clustering key in Cassandra?
...KEY:
insert into stackoverflow_simple (key, data) VALUES ('han', 'solo');
select * from stackoverflow_simple where key='han';
table content
key | data
----+------
han | solo
COMPOSITE/COMPOUND KEY can retrieve "wide rows" (i.e. you can query by just the partition key, even if you have clusteri...
Creating and playing a sound in swift
... Did you try to compile the code? I am getting error "Cannot convert the extression's type 'Unmanaged <CFURL>!' to type 'CFString'" from this line "let soundURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), "Cha-Ching", "aiff", nil)"
– bpolat
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