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How do I delete/remove a shell function?
...e to have functions/aliases like realiases, refunctions, resetopts, reenv, etc to "re-source" respective files, if you've separated/grouped them as such.)
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How to see the changes between two commits without commits in-between?
...er than 'abcdef's immediate ancestor. Of course, you may get conflicts and etc, so it's not a very useful process in most cases.
If you're just interested in abcdef itself, you can do:
$ git log -u -1 abcdef
This compares abcdef to its immediate ancestor, alone, and is usually what you want.
An...
Convert Data URI to File then append to FormData
... Just an idea: array=[]; array.length=binary.length; ... array[i]=bina... etc. So the array is pre-allocated. It saves a push() having to extend the array each iteration, and we're processing possibly millions of items (=bytes) here, so it matters.
– DDS
Mar 1...
How can I get the current page name in WordPress?
...fore the loop, before $post is populated, before $wp_query is initialized, etc...) you really have no choice but to access the server variables themselves and extract the requested page from the query string.
$page_slug = trim( $_SERVER["REQUEST_URI"] , '/' )
Note that this is a "dumb" solution. ...
Make div stay at bottom of page's content all the time even when there are scrollbars
...ayout
<body>
<div id="nonFooter">header,middle,left,right,etc</div>
<div id="footer"></div>
</body>
Well this way don't support old browser however its acceptable for old browser to scrolldown 30px to view the footer
plunker
...
Preview an image before it is uploaded
... @Raptor and so is the whole File API... (FileReader, input.files etc.) URL.createObjectURL is the way to go when dealing with user submitted files, it only creates an in-memory symlink to the real file on user's disk.
– Kaiido
Jul 2 '17 at 2:20
...
Options for initializing a string array [duplicate]
...g2"};
or
string[] myString = new string[4];
myString[0] = "string1"; // etc.
Advanced:
From a List
list<string> = new list<string>();
//... read this in from somewhere
string[] myString = list.ToArray();
From StringCollection
StringCollection sc = new StringCollection();
/// r...
Given a filesystem path, is there a shorter way to extract the filename without its extension?
...as a Backup wherein the file name contains invalid characters [ <, > etc in Path.GetInvalidChars()].
– bhuvin
Sep 8 '15 at 6:17
...
Linux常用命令（持续更新...） - C/C++ - 清泛网 - 专注C/C++及内核技术
...册为系统自启动服务的方法
cp /usr/local/apache2/bin/apachectl /etc/init.d/httpd
chkconfig --add httpd
chkconfig httpd on
磁盘空间不足，查看各目录占用情况：
cd xxx
du -h --max-depth=1
查找文件（例如/usr目录下查找包含'apache'的目录和文件）：...
mysql blob大小配置介绍 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...5K
MediumBlob 最大 16M
LongBlob 最大 4G
linux修改etc/my.cnf
[mysqld]
max_allowed_packet = 16M #不同于[mysqldump]下的max_allowed_packet
mysql blob