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What to do with branch after merge
...hecked out in the recent repository history will also show up there. Aside from that, git fsck will be the tool of choice at any case of commit-loss in git.
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How to change value of process.env.PORT in node.js?
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For just one run (from the unix shell prompt):
$ PORT=1234 node app.js
More permanently:
$ export PORT=1234
$ node app.js
In Windows:
set PORT=1234
In Windows PowerShell:
$env:PORT = 1234
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C# HttpWebRequest vs WebRequest
...right. It would have been nice if there was a way to get a HttpWebRequest from either HttpWebRequest.Create or something like HttpWebRequest.CreateHttp without casting. The first would be something like public new static HttpWebRequest Create(string url). Either way, if the url wasn't HTTP(s), it...
How to pip install a package with min and max version range?
...ements.txt IMO. Using package==1.* instead of package>=1.2 prevents pip from installing major version 2+ for the package, which is desirable since major version changes are often backwards incompatible.
– Michael Hays
Jan 18 '18 at 18:41
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gdb: how to print the current line or find the current line number?
...piled with -g to contain debug info, I'm currently in a stack frame, taken from one of shared libraries, which apparently wasn't compiled to contain line information. Thanks, kumar.
– Boris Burkov
Jan 31 '13 at 6:06
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Is SecureRandom thread safe?
...xtends Random, which always had a de facto threadsafe implementation, and, from Java 7, explicitly guarantees threadsafety.
If many threads are using a single SecureRandom, there might be contention that hurts performance. On the other hand, initializing a SecureRandom instance can be relatively sl...
Text-align class for inside a table
...u pose the question "What is this td for?", you will not get clarification from the answer "align-right".
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How to append text to an existing file in Java?
...rintWriter gives you access to println syntax that you're probably used to from System.out.
But the BufferedWriter and PrintWriter wrappers are not strictly necessary.
Older Java
try {
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("myfile.txt", true)));
out.println...
Why is my xlabel cut off in my matplotlib plot?
.../customizing.html
Method 2
Update the rcParams during runtime like this
from matplotlib import rcParams
rcParams.update({'figure.autolayout': True})
The advantage of using this approach is that your code will produce the same graphs on differently-configured machines.
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include external .js file in node.js app
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If you just want to test a library from the command line, you could do:
cat somelibrary.js mytestfile.js | node
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