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TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...CK包。
Transmitted Received ACK Sent
Segment Segment (Including SACK Blocks)
3000-3499 3000-3499 3500 (ACK dropped)
3500-3999 3500-3999 4000 (ACK dropped)
3000-3499 3000-3499 4000, SACK=3000-3500
---------
示例二...
Dynamic variable names in Bash
...
@Yorik.sar can you include the excerpt from the manual in the answer itself? It makes more sense that way, given you're the author anyway. TIA.
– Josip Rodin
Nov 4 '15 at 12:23
...
Static variables in JavaScript
...e article series I've mentioned above are highly recommended to read, they include also the following topics:
Functions
Objects
Prototypes
Enforcing New on Constructor Functions
Hoisting
Automatic Semicolon Insertion
Static Properties and Methods
Note that the automatic semicolon insertion "feat...
How do I check if a string contains a specific word?
...o combine both sets of functionality into a single multi-purpose function (including with selectable case sensitivity), you could use something like this:
function FindString($needle,$haystack,$i,$word)
{ // $i should be "" or "i" for case insensitive
if (strtoupper($word)=="W")
{ // if ...
Should I compile release builds with debug info as “full” or “pdb-only”?
...n the process of writing a unhandled exception handler and the stack trace includes the line number when pdb-only is used, otherwise I just get the name of the Sub/Function when I choose None.
If I don't distribute the .pdb I don't get the line number in the stack trace even with the pdb-only buil...
Foreign key constraints: When to use ON UPDATE and ON DELETE
.../doc/refman/5.6/en/triggers.html ) to mysql site has changed. It says This includes changes to base tables that underlie updatable views instead of what you pasted i.e. They do not activate for changes in views
– Istiaque Ahmed
Dec 10 '17 at 7:36
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How to position one element relative to another with jQuery?
...
You can use the jQuery plugin PositionCalculator
That plugin has also included collision handling (flip), so the toolbar-like menu can be placed at a visible position.
$(".placeholder").on('mouseover', function() {
var $menu = $("#menu").show();// result for hidden element would be incorre...
Keep overflow div scrolled to bottom unless user scrolls up
...t;= out.scrollTop + 1;
scrollHeight gives you the height of the element, including any non visible area due to overflow. clientHeight gives you the CSS height or said in another way, the actual height of the element. Both methods returns the height without margin, so you needn't worry about that. ...
Best practices for using Markers in SLF4J/Logback
... a specific log message. This is more consistent and easier to parse than including it in the message body. Very useful, if it suits your use-case.
See details here:
https://github.com/logstash/logstash-logback-encoder#loggingevent_custom_event
...
What is the claims in ASP .NET Identity
...d because Kerberos is a part of Windows, your applications don't
have to include much authentication logic. As long as every
application you build can use Integrated Windows Authentication, you
may have already reached your identity utopia. However, there are many
reasons why you might need ...