大约有 31,500 项符合查询结果(耗时:0.0389秒) [XML]

https://stackoverflow.com/ques... 

Using str_replace so that it only acts on the first match?

... There's no version of it, but the solution isn't hacky at all. $pos = strpos($haystack, $needle); if ($pos !== false) { $newstring = substr_replace($haystack, $replace, $pos, strlen($needle)); } Pretty easy, and saves the performance penalty of regular expressions. Bonus: If...
https://stackoverflow.com/ques... 

How to get the entire document HTML as a string?

...ion. See quirksmode for browser compatibility for what will work for you. All support innerHTML. var markup = document.documentElement.innerHTML; alert(markup); share | improve this answer ...
https://stackoverflow.com/ques... 

Check if Internet Connection Exists with Javascript? [duplicate]

...browsers, doing so with older web browsers may not work as expected, or at all. Alternatively, an XHR request to your own server isn't that bad of a method for testing your connectivity. Considering one of the other answers state that there are too many points of failure for an XHR, if your XHR is ...
https://stackoverflow.com/ques... 

config.assets.compile=true in Rails production, why not?

The default Rails app installed by rails new has config.assets.compile = false in production. 7 Answers ...
https://stackoverflow.com/ques... 

brew install mysql on macOS

I'm trying to setup up MySQL on mac os 10.6 using Homebrew by brew install mysql 5.1.52 . 16 Answers ...
https://stackoverflow.com/ques... 

Should 'using' directives be inside or outside the namespace?

... There is actually a (subtle) difference between the two. Imagine you have the following code in File1.cs: // File1.cs using System; namespace Outer.Inner { class Foo { static void Bar() { double d = Ma...
https://stackoverflow.com/ques... 

What is state-of-the-art for text rendering in OpenGL as of version 4.1? [closed]

...map-textured quad, and evaluating curves in the shader is still computationally much more expensive than necessary. The best trade-off between "fast" and "quality" are still textured quads with a signed distance field texture. It is very slightly slower than using a plain normal textured quad, but ...
https://stackoverflow.com/ques... 

ANTLR: Is there a simple example?

...r, and evaluator using ANTLR4. You first create a grammar. Below is a small grammar that you can use to evaluate expressions that are built using the 4 basic math operators: +, -, * and /. You can also group expressions using parenthesis. Note that this grammar is just a very basic one: it does ...
https://stackoverflow.com/ques... 

Remove Elements from a HashSet while Iterating [duplicate]

... You can manually iterate over the elements of the set: Iterator<Integer> iterator = set.iterator(); while (iterator.hasNext()) { Integer element = iterator.next(); if (element % 2 == 0) { iterator.remove(); } }...
https://stackoverflow.com/ques... 

Error when deploying an artifact in Nexus

... I changed version of my artifact to SNAPSHOT and then deploy and all was ok. Then I realized that I was trying to deploy to a Nexus group (not a Nexus repository), so the cause of my problem was: 'url to my nexus repository was wrong' – acimutal Sep 1...