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Check if one IEnumerable contains all elements of another IEnumerable
What is the fastest way to determine if one IEnumerable contains all the elements of another IEnumerable when comparing a field/property of each element in both collections?
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What is the difference between int, Int16, Int32 and Int64?
...al, on modern computers, an int16 takes as much space as an int32 (and actually an int64) because in order for most operations to be efficient, we pad around the data to make accesses aligned to 32 or 64 bit boundaries (in 32 or 64 bit modes respectively). This is because unaligned accesses are ridi...
Quick way to list all files in Amazon S3 bucket?
...s of filenames in it. What's the easiest way to get a text file that lists all the filenames in the bucket?
27 Answers
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SQL Query to concatenate column values from multiple rows in Oracle
... (with tag E)
extract the text of this
aggregate the xml (concatenate it)
call the resulting column "Result"
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How do I clear all options in a dropdown box?
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You can use the following to clear all the elements.
var select = document.getElementById("DropList");
var length = select.options.length;
for (i = length-1; i >= 0; i--) {
select.options[i] = null;
}
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How do I remove the “extended attributes” on a file in Mac OS X?
...pple.metadata:kMDItemWhereFroms
you can also use the -c option to remove all extended attributes:
$ xattr -c s.7z
$ xattr s.7z
xattr -h will show you the command line options, and xattr has a man page.
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对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ongproxynew# make depend
jiulongproxynew# make
jiulongproxynew# make install
3、配置/etc/rc.conf：
hostname="jiulongproxynew.jscpu.com"
defaultrouter="221.6.117.97"
ifconfig_em0="inet 221.6.117.50 netmask 255.255.255.240"
ifconfig_em1="inet 128.0.0.4 netmask 255.255.252.0"
sendmail_ena...
What is the difference between getFields and getDeclaredFields in Java reflection
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getFields()
All the public fields up the entire class hierarchy.
getDeclaredFields()
All the fields, regardless of their accessibility but only for the current class, not any base classes that the current class might be inheriting from...
How can I list all the deleted files in a Git repository?
...See Find and restore a deleted file in a Git repository
If you don't want all the information about which commit they were removed in, you can just add a grep delete in there.
git log --diff-filter=D --summary | grep delete
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How do I remove/delete a virtualenv?
...t you are using. virtualenv, venv, Anaconda environment, pyenv, pipenv are all based the same principle here.
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