...对服务端不得不维持大量的连接。开启还是关闭，这是个问题。 一个经常用来讲解HTTPKeepAlive的例子一般是这样描述的：当我们访问一个包含了若干个图片的网页时，如果HTTPKeepAlive是关闭的，那么页面中每一个图片都会发起一...

...nstead of using SELECT * ... use SELECT column 1, column 2... Unless you really do need all columns. – LPChip Nov 18 '17 at 20:43 ...

...etElementById('form-id').submit();"> submit </a> </form> All ways Whatever way you choose, you have call formObject.submit() eventually (where formObject is the DOM object of the <form> tag). You also have to bind such an event handler, which calls formObject.submit(), so i...

... "simple return" actually returns. It will return control from the each and everything else around it and after it until it exit's each()'s parent control - such as a function() which is using each. This is the correct answer, and the other appro...

...Edge) and it is not supported in Safari. In 2012 when the answer was originally posted it wasn't supported in any major browser. – Cfreak Jul 7 '16 at 3:40 2 ...

...as grep -F. Direct invocation as fgrep is deprecated, but is provided to allow historical applications that rely on them to run unmodified. For the complete reference, check: https://www.gnu.org/savannah-checkouts/gnu/grep/manual/grep.html ...

I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...

...ache. You can see the enabling of the feature with the directive Require all denied This basically says to deny access to all users. To fix this problem, either remove the denied directive (or much better) add the following directive to the directories you want to grant access to: Require all ...

...(RFC 2616): Note: RFC 1945 and RFC 2068 specify that the client is not allowed to change the method on the redirected request. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the ori...

... Note: The original answer fails to mention that it you will need to install jsdom as well using npm install jsdom Update (late 2013): The official jQuery team finally took over the management of the jquery package on npm: npm install jquery Then: require("jsdom").env("", function (err, wind...