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background function in Python
...nd cannot run the function as many times that I want and want to queue the extra executions of the function. Do you have any idea on how I should do that? I have my question here. Could you please take a look at my question? Any help would be great!
– Amir
Mar ...
How to use WinForms progress bar?
...c(progress);? This is very much on purpose, as that would not result in an extra thread running. Only if DoWorkAsync would call it's own await for e.g. waiting on an I/O operation, would the button1_Click function continue. The main UI thread is blocked for this duration. If DoWorkAsync is not reall...
How to get the Full file path from URI
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Use:
String path = yourAndroidURI.uri.getPath() // "/mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));
or
String path = yourAndroidURI.uri.toString() // "file:///mnt/sdcard/FileName.mp3"
File file = new File(new URI...
Optimal way to concatenate/aggregate strings
I'm finding a way to aggregate strings from different rows into a single row. I'm looking to do this in many different places, so having a function to facilitate this would be nice. I've tried solutions using COALESCE and FOR XML , but they just don't cut it for me.
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Correct way to use StringBuilder in SQL
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The aim of using StringBuilder, i.e reducing memory. Is it achieved?
No, not at all. That code is not using StringBuilder correctly. (I think you've misquoted it, though; surely there aren't quotes around id2 and table?)
Note that the aim ...
App.Config Transformation for projects which are not Web Projects in Visual Studio?
... the things I need to make environment-specific are things like connection strings, appsettings and often smpt settings. The config system allows to specify these things in separate files. So you can use this in your app.config/web.config:
<appSettings configSource="appsettings.config" />
&...
What is Node.js? [closed]
... the client and server, and (c) re-use my own and others' JS libraries for string handling ...etc.
– Antony Quinn
Mar 20 '12 at 11:57
4
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Multiple glibc libraries on a single host
...ed GLIBC_2.3, so you can easily find which lib provides that version using strings:
$ strings /lib/i686/libc.so.6 | grep GLIBC_2.3
$ strings /path/to/newglib/libc.so.6 | grep GLIBC_2.3
In theory, the first grep would come empty because the system libc doesn't have the version he wants, and the 2nd ...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
...e above example should clearly show how slow apply can be, but just so its extra clear let's look at the most basic example. Let's square a Series of 10 million numbers with and without apply
s = pd.Series(np.random.rand(10000000))
%timeit s.apply(calc)
3.3 s ± 57.4 ms per loop (mean ± std. dev....
Extract elements of list at odd positions
...Python's list slicing notation. See here: Explain Python's slice notation
Extras - replacing counter with enumerate()
In your code, you explicitly create and increase the counter. In Python this is not necessary, as you can enumerate through some iterable using enumerate():
for count, i in enumer...