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WebSockets protocol vs HTTP
...TP. It is not. It's an extension.
The main use-case of WebSockets are Javascript applications which run in the web browser and receive real-time data from a server. Games are a good example.
Before WebSockets, the only method for Javascript applications to interact with a server was through XmlHtt...
Cookie blocked/not saved in IFRAME in Internet Explorer
..., when cookies are blocked, session identifier is not sent, and the target script throws a 'session not found' error.
(I've tried setting the session identifier into the form and loading it from POST variables. This would have worked, but for political reasons I couldn't do that.)
It is possible t...
How do I uniquely identify computers visiting my web site?
...TTPS session key.
getISP(requestIP)|getHTTPSClientKey()
FingerPrintID: JavaScript based fingerprinting based on a modified fingerprint.js. FingerPrint.get()
SessionID: Random key generated when user 1st visits site. BrowserID|ComputerID|randombytes(256)
GoogleID: Generated from __utma cookie. getCoo...
What is the scope of variables in JavaScript?
What is the scope of variables in javascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally?
...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...项
2.1. awk的语法有两种形式
awk [options] 'script' var=value file(s)
awk [options] -f scriptfile var=value file(s)
2.2. 命令选项
-F fs or --field-separator fs
指定输入文件折分隔符，fs是一个字符串或者是一...
Most simple but complete CMake example
...it. If you really want to automate it, a better approach may be to write a script that you can run to regenerate the list of source files (or use a cmake aware IDE that does this for you; I am not familiar with any).
– sgvd
Jan 16 '14 at 16:37
...
What is “git remote add …” and “git push origin master”?
...e are a few odd behaviours in git that are hard to change now because many scripts may rely on them, but are confusing to people.
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WiX tricks and tips
...cope="perMachine" Platform="$(var.Platform)"
Compressed="yes" Description="$(var.ProductName)" />
and
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="$(var.PlatformProgramFilesFolder)">
<Directory Id="INSTALLLOCATION" Name="$(var.InstallName)">
Th...
Asking the user for input until they give a valid response
...ne most of the time, but if the user enters invalid data enough times, the script will terminate with a RuntimeError: maximum recursion depth exceeded. You may think "no fool would make 1000 mistakes in a row", but you're underestimating the ingenuity of fools!
...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...'s (especially UNIX) by design allow a child process to inherit all File-descriptors (FD) from parents. Thus all the sockets (in UNIX like OS are also part of FD) that a process A listening to, can be listened by many more processes A1, A2, .. as long as they are related by parent-child relation to ...