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.NET unique object identifier
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That may well help, but with a cost - IIRC, using the base object.GetHashCode() needs to allocate a sync block, which isn't free. Nice idea though - +1 from me.
– Jon Skeet
Apr 15 '09 at 9:47
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Download file from web in Python 3
...access to the file.
import urllib.request
import gzip
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# Read the first 64 bytes of the file inside the .gz archive located at `url`
url = 'http://example.com/something.gz'
with urllib.request.urlopen(url) as response:
with gzip.GzipFile(fileobj=response) as uncompressed:
file_header ...
Node.js/Windows error: ENOENT, stat 'C:\Users\RT\AppData\Roaming\npm'
...s ago. I had to manually create the folder to make it work on Windows 8.1 x64.
– Sahas Katta
Aug 20 '14 at 19:51
3
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Converting strings to floats in a DataFrame
... [14]: df.convert_objects(convert_numeric=True).dtypes
Out[14]:
A float64
B float64
dtype: object
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What is difference between Collection.stream().forEach() and Collection.forEach()?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Error Code: 2013. Lost connection to MySQL server during query
...ield to 0 is equivalent to the default parameter (600 seconds). (Windows 7 64-bit Ultimate, MySQL Workbench 5.2.47 CE)
– Franck Dernoncourt
Jun 1 '13 at 21:30
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Cannot find Dumpbin.exe
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With VS 2019, installing MSVC v142 - VS 2019 C++ x64/x86 build tools (v14.25) was enough for me to get dumpbin.exe.
– 0xced
Apr 16 at 6:57
add a comme...
Volatile Vs Atomic [duplicate]
...before by thread A, because it was just in the middle of calculating i + 1 based on the old value, and then set i again to that old value + 1. Explanation:
Assume i = 0
Thread A reads i, calculates i+1, which is 1
Thread B sets i to 1000 and returns
Thread A now sets i to the result of the operatio...
When to use AtomicReference in Java?
....e. thread-safe, non-trivial) operations on a reference, for which monitor-based synchronization is not appropriate. Suppose you want to check to see if a specific field only if the state of the object remains as you last checked:
AtomicReference<Object> cache = new AtomicReference<Object&...
doGet and doPost in Servlets
...arameter("txtNHSNo");
String attachment1 = request.getParameter("base64textarea1");
String attachment2 = request.getParameter("base64textarea2");
.........
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