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How can I scan barcodes on iOS?
...who requests them.. check out zbar.sourceforge.net/iphone/sdkdoc/licensing.html
– Ben Clayton
Dec 18 '12 at 13:16
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MySQL “NOT IN” query
...t;> ALL!
http://dev.mysql.com/doc/refman/5.0/en/any-in-some-subqueries.html
SELECT c FROM t1 LEFT JOIN t2 USING (c) WHERE t2.c IS NULL
cant' be replaced by
SELECT c FROM t1 WHERE c NOT IN (SELECT c FROM t2)
You must use
SELECT c FROM t1 WHERE c <> ANY (SELECT c FROM t2)
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Java ArrayList how to add elements at the beginning
... the list.
https://docs.oracle.com/javase/7/docs/api/java/util/LinkedList.html#addFirst(E)
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...分。
侵删，来源：https://blog.sciencenet.cn/blog-858128-1286181.html
jQuery selector regular expressions
...iv')
.filter(function() {
return this.id.match(/abc+d/);
})
.html("Matched!");
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="abcd">Not matched</div>
<div id="abccd">Not matched</div>
<div ...
Access denied for user 'test'@'localhost' (using password: YES) except root user
...nk for reference: dev.mysql.com/doc/refman/5.7/en/stored-programs-security.html
– Justin
Jun 25 '16 at 19:51
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How do you move a file?
...is the official documentation of this feature: tortoisesvn.net/repairmoves.html
– Yosko
Nov 16 '17 at 15:14
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Auto expand a textarea using jQuery
...no IE support - IE doesn't respond to rows attribute change)
DEMO PAGE
HTML
<textarea class='autoExpand' rows='3' data-min-rows='3' placeholder='Auto-Expanding Textarea'></textarea>
CSS
textarea{
display:block;
box-sizing: padding-box;
overflow:hidden;
padding:10px;
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How do I install cURL on cygwin?
... a wget).I am on windows64 bit.So ,if you go to https://cygwin.com/install.html ,you can download setup-x86_64.exe file from the install and updates section,move this setup-x86_64.exe to your c:/cygwin64,and then run it from there ( setup-x86_64.exe -q -P curl)
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Git format-patch to be svn compatible?
... commit:
http://www.mail-archive.com/dev@trafficserver.apache.org/msg00864.html
#!/bin/sh
#
# git-svn-diff
# Generate an SVN-compatible diff against the tip of the tracking branch
TRACKING_BRANCH=`git config --get svn-remote.svn.fetch | sed -e 's/.*:refs\/remotes\///'`
REV=`git svn find-rev $(git r...