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How to get Maven project version to the bash command line
Previous I issued a question on how to change Maven project vesion from command line which lead me to a new issue.
28 Ans...
What does value & 0xff do in Java?
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It sets result to the (unsigned) value resulting from putting the 8 bits of value in the lowest 8 bits of result.
The reason something like this is necessary is that byte is a signed type in Java. If you just wrote:
int result = value;
then result would end up with the ...
Multiple controllers with AngularJS in single page app
...-div "ng-app" tags) if only your first controller works. (I remember this from my Angular newbie days.)
– ftexperts
Oct 28 '14 at 4:11
1
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What is a WeakHashMap and when to use it? [duplicate]
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Here is a good sentence from that article: Weak references allow you to leverage the garbage collector's ability to determine reachability for you, so you don't have to do it yourself.
– Christophe Roussy
Jul ...
how to delete all commit history in github? [duplicate]
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this works but it will keep the history from previous commits on the tree like @Desta Haileselassie Hagos said
– Julio Marins
Dec 23 '14 at 19:09
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Use different Python version with virtualenv
...on-config will be invoked with confusing consequences. See this bug report from 2011 github.com/pypa/virtualenv/issues/169 and my question stackoverflow.com/questions/42020937/…
– Laryx Decidua
Feb 23 '18 at 11:16
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Restore the state of std::cout after manipulating it
...cal variable and disable them before state.copyfmt, then restore exception from the variable (and do this again after restoring state from oldState which has exceptions disabled). 3) Set rdbuf to std::ios like this: struct : std::streambuf {} sbuf; std::ios oldState(&sbuf);
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Docker can't connect to docker daemon
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Linux
To run docker daemon on Linux (from CLI), run:
$ sudo service docker start # Ubuntu/Debian
Note: Skip the $ character when copy and pasting.
On RedHat/CentOS, run: sudo systemctl start docker.
To initialize the "base" filesystem, run:
$ sudo service ...
How to stop a PowerShell script on the first error?
...tell the caller of your script that it has failed. Building on top of Exec from the library Psake, a script that has the structure below will stop on all errors, and is usable as a base template for most scripts.
Set-StrictMode -Version latest
$ErrorActionPreference = "Stop"
# Taken from psake ht...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...s does not require that wchar_t be large enough to represent any character from all locales simultaneously. That is, the encoding used for wchar_t may differ between locales. Which means that you cannot necessarily convert a string to wchar_t using one locale and then convert back to char using anot...