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Why does javascript replace only first instance when using replace? [duplicate]
...ce all matches in one go.
If you want a real string-based replace — for example because the match-string is dynamic and might contain characters that have a special meaning in regexen — the JavaScript idiom for that is:
var id= 'c_'+date.split('/').join('');
...
Passing variables in remote ssh command
...un_pvt.pl $BUILD_NUMBER'
your shell will interpolate the $BUILD_NUMBER before sending the command string to the remote host.
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python location on mac osx
...t the Python(s) were built with, not the version of Python itself. That information should be on the previous line. For example:
# Apple-supplied Python 2.6 in OS X 10.6
$ /usr/bin/python
Python 2.6.1 (r261:67515, Jun 24 2010, 21:47:49)
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin
Type "help", ...
【解决】模拟器启动失败：ERROR: x86_64 emulation currently requires har...
...ition elfsck failed with exit code 8
handle puAcceleration: feature check for hvf emulator: ERROR: x86_64 emulation currently requires
hardware acceleration!
CPU acceleration status: Hill is not installed on this machine
解决方法：
安装硬件加速器，路径：
....\resources\app.asa...
Sending files using POST with HttpURLConnection
...he");
httpUrlConnection.setRequestProperty(
"Content-Type", "multipart/form-data;boundary=" + this.boundary);
Start content wrapper:
DataOutputStream request = new DataOutputStream(
httpUrlConnection.getOutputStream());
request.writeBytes(this.twoHyphens + this.boundary + this.crlf);
req...
How can I get a web site's favicon?
...olders/files from the same place. Getting the default icons from my system for known file types isn't terribly complicated, but I don't know how to get the favicon from a website. (SO has the grey->orange stack icon in the address bar for instance)
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Check whether an array is empty [duplicate]
... one-liner like php -r 'echo array() ? "T":"F";' will show the truthiness for an empty or non-empty array.
– jerseyboy
May 16 '14 at 13:08
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
...
and now it just complains that Access denied for user
– user3338098
Nov 4 '15 at 17:34
5
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Fastest way to determine if an integer's square root is an integer
I'm looking for the fastest way to determine if a long value is a perfect square (i.e. its square root is another integer):
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Merge a Branch into Trunk
...a ..
Committed revision <N+1>.
See the SVN book chapter on merging for more details.
Note that at the time it was written, this was the right answer (and was accepted), but things have moved on. See the answer of topek, and http://subversion.apache.org/docs/release-notes/1.8.html#auto-re...