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How to input a regex in string.replace?
...erally «\/{0,}»
# Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «{0,}»
# Match the character “[” literally «\[»
# Match a single digit 0..9 «\d+»
# Between one and unlimited times, as many times as possible, giving back as needed (greed...
Android 4.3 Bluetooth Low Energy unstable
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Important implementation hints
(Perhaps some of those hints aren't necessary anymore due to Android OS updates.)
Some devices like Nexus 4 with Android 4.3 take 45+ seconds to connect using an existing gatt instance. Work around: Always close gatt instances on disconnect a...
NSDefaultRunLoopMode vs NSRunLoopCommonModes
...gets halted as soon as I touch iPhone screen. Thankfully, an awesome blog post by Jörn suggests an alternative option, using NSRunLoopCommonModes for connection.
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List files with certain extensions with ls and grep
...itch to prevent that directories are recursed.
– Carlos Eugenio Thompson Pinzón
Oct 5 '13 at 16:50
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What happens to a detached thread when main() exits?
... running atexit handlers, flushing streams etc. it returns control to the host environment, i.e. the process exits. If a detached thread is still running (and has somehow avoided undefined behaviour by not touching anything outside its own thread) then it just disappears in a puff of smoke as the pr...
What is the easiest way to get current GMT time in Unix timestamp format?
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Output:
1369550494.884832
For the standard CPython implementation on most platforms this will return a UTC value.
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Why use 'git rm' to remove a file instead of 'rm'?
...git rm) and deleted many files using it, and now don't want git to track those. Is there a way to revert changes? I want git to tread my rm as removed since I didn't use git rm in the first place.
– Chetan Arvind Patil
Jan 30 '18 at 17:43
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`Apache` `localhost/~username/` not working
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FYI, if you're trying to use PHP on Yosemite, you'll likely have to uncomment the following line from /etc/apache2/httpd.conf: LoadModule php5_module libexec/apache2/libphp5.so
– Joshua Pinter
Sep 6 '14 at 1:01
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Replace comma with newline in sed on MacOS?
...s/,/\\\n/g'
Note this will not work on all shells, but will work on the most common ones.
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How do I find where JDK is installed on my windows machine?
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If you are using Linux/Unix/Mac OS X:
Try this:
$ which java
Should output the exact location.
After that, you can set JAVA_HOME environment variable yourself.
In my computer (Mac OS X - Snow Leopard):
$ which java
/usr/bin/java
$ ls -l /usr/bin/java...