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How to read the output from git diff?
...
On my mac:
info diff then select: Output formats -> Context -> Unified format -> Detailed Unified :
Or online man diff on gnu following the same path to the same section:
File: diff.info, Node: Detailed
Unified, Next: Example Unified...
Is it necessary to write HEAD, BODY and HTML tags?
...licity reasons it’s best
served omitting all optional tags, not just a selection.)
<!-- Not recommended -->
<!DOCTYPE html>
<html>
<head>
<title>Spending money, spending bytes</title>
</head>
<body>
<p>Sic.</p>
</bod...
Difference between JVM and HotSpot?
..., and watches the actual performance of the app. Parts of the app are then selected to be fully-compiled as native code and cached, for much faster execution. HotSpot was developed at Sun as a commercial product. After acquiring Sun, Oracle further evolved HotSpot by combining important parts of the...
How to use Elasticsearch with MongoDB?
...ng bumped up when you update.
echo "mongodb-10gen hold" | sudo dpkg --set-selections
Start the MongoDB service.
sudo service mongodb start
Your database files default to /var/lib/mongo and your log files to /var/log/mongo.
Create a database through the mongo shell and push some dummy data int...
Automatically add all files in a folder to a target using CMake?
... Makefile manually, you might generate a SRCS variable using a function to select all .cpp and .h files. If a source file is later added, re-running make will include it.
However, CMake (with a command like file(GLOB ...)) will explicitly generate a file list and place it in the auto-generated Mak...
Performance differences between debug and release builds
...al in the x86 jitter because it has few registers to work with. Having it select the right ones is critical to perf.
These are very important optimizations that can make a great deal of difference when, for example, you profile the Debug build of your app and compare it to the Release build. Tha...
Log4net does not write the log in the log file
...
Also, Make sure the "Copy always" option is selected for [log4net].config
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String literals and escape characters in postgresql
...the escape string syntax for escapes, e.g., E'\r\n'.
INSERT 0 1
milen=> select * from EscapeTest;
text
------------------------
This will be inserted
This will not be
(1 row)
milen=>
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...360 -0.229738
4 0.000000 0.000000
To fill the NaNs in only one column, select just that column. in this case I'm using inplace=True to actually change the contents of df.
In [12]: df[1].fillna(0, inplace=True)
Out[12]:
0 0.000000
1 0.570994
2 0.000000
3 -0.229738
4 0.000000
Name...
Java to Clojure rewrite
... STM transactional behaviour by wrapping any code in a (dosync ...) block.
Select the right overall web framework - Clojure has quite a few already but I'd strongly recommend Ring - see this excellent video "One Ring To Bind Them" plus either Fleet or Enlive or Hiccup depending on your templating p...