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How to handle change of checkbox using jQuery?
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How to toggle a checkbox without event (from the outside) : jsfiddle.net/k91k0sLu/1
– laurent belloeil
Jun 30 '16 at 11:59
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How to add a search box with icon to the navbar in Bootstrap 3?
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You could use the segmented buttons example from Bootstrap 3:
<form action="" class="navbar-form navbar-right">
<div class="input-group">
<input type="Search" placeholder="Search..." class="form-control" />
<div class="input-group...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...comments:
printf '' | git hash-object --stdin -t tree
Or, as seen here, from Colin Schimmelfing:
git hash-object -t tree --stdin < /dev/null
So I guess it is safer to define a variable with the result of that command as your empty sha1 tree (instead of relying of a "well known value").
Not...
Draw in Canvas by finger, Android
...or you just get duplicates
// almost always you will want to reduce res from the very high screen res
whatTheUserDrewBitmap =
ThumbnailUtils.extractThumbnail(whatTheUserDrewBitmap, 256, 256);
// NOTE that's an incredibly useful trick for cropping/resizing squares
// while handling ...
What is the second parameter of NSLocalizedString()?
... the translation, that is you are giving a key to get corresponding string from the corresponding strings file.
The comment parameter enables developer to understand what the key represents...
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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ipe
接着使用strace跟踪了一下PHP脚本，发现进程卡在了recvfrom操作上：
shell> strace -f -r -p <PID>
recvfrom(<FD>,
通过如下命令查询recvfrom操作的含义：
shell> apropos recvfrom
receive a message from a socket
或者按照下面的方式确认一下：
s...
How to add NERDTree to your .vimrc
...get NERDTree to load automatically when you start up vim, run it like this from the command line:
$ vim -c "NERDTree" some_file.txt
You can set an alias for this in your .bashrc:
alias vimt='vim -c "NERDTree" $1'
Now whenever you run vimt (instead of vim) you'll also open up NERDTree on the le...
How to retrieve inserted id after inserting row in SQLite using Python?
... The last_insert_rowid() function returns the ROWID of the last row insert from the database connection which invoked the function. The last_insert_rowid() SQL function is a wrapper around the sqlite3_last_insert_rowid() C/C++ interface function.
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How do I get the first n characters of a string without checking the size or going out of bounds?
...String, 0, n) is not the same as yourString.substring(0, n). The former is from StringUtils, while the latter is using String.substring (which gives exception if end index exceeds string length).
– ToolmakerSteve
Aug 20 '14 at 4:59
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Custom numeric format string to always display the sign
...also use format strings in string.Format(); the format string is separated from the index with a colon (':')
var f = string.Format("{0}, Force sign {0:+#;-#;+0}, No sign for zero {0:+#;-#;0}", number);
For number { +1, -1, 0 } this gives:
1, Force sign +1, No sign for zero +1
-1, Force ...