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ETag vs Header Expires

...er or not to make a request for that file again in the future. If ETag is all it has, it will always have to make a request. However, when the server reads the ETag from the client request, the server can then determine whether to send the file (HTTP 200) or tell the client to just use their local...
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jQuery .live() vs .on() method for adding a click event after loading dynamic html

... you want the click handler to work for an element that gets loaded dynamically, then you set the event handler on a parent object (that does not get loaded dynamically) and give it a selector that matches your dynamic object like this: $('#parent').on("click", "#child", function() {}); The event...
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Abandoning changes without deleting from history

...rst time you push this closed head to another repository since you are actually create additional heads in the remote repository when you push. So tell Mercurial that this is okay with --force. People who pull the closed head wont be bothered by any warnings. ...
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Common CSS Media Queries Break Points [duplicate]

...re practical to base them on your particular layout instead. That is, gradually narrow your desktop browser window and observe the natural breakpoints for your content. It's different for every site. As long as the design flows well at each browser width, it should work pretty reliably on any scree...
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Where to place JavaScript in an HTML file?

...ts. Of course Levi's comment "just before you need it and no sooner" is really the correct answer, i.e. "it depends". share | improve this answer | follow | ...
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Multiple inheritance/prototypes in JavaScript

... first prototype which contains that property, and I return the value, or call the getter on the appropriate receiver. This is handled by Reflect.get. If no prototype contains the property, I return undefined. The set trap is a trap for setting property values. I use find to find the first prototype...
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How to prevent favicon.ico requests?

... I will first say that having a favicon in a Web page is a good thing (normally). However it is not always desired and sometime developers need a way to avoid the extra payload. For example an IFRAME would request a favicon without showing it. Worst yet, in Chrome and Android an IFRAME will generate...
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What is the difference between HashSet and List?

... Actually, I prefer the answer that points out that HashSets are suitable in cases that you can treat your collection as "bag items". Set operations are not so frequent as Containment checks. At any point that you have a set of un...
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GDB corrupted stack frame - How to debug?

... Those bogus adresses (0x00000002 and the like) are actually PC values, not SP values. Now, when you get this kind of SEGV, with a bogus (very small) PC address, 99% of the time it's due to calling through a bogus function pointer. Note that virtual calls in C++ are implemented ...
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Change a Git remote HEAD to point to something besides master

...-f origin master Making master have what you want people to use, and do all other work in branches. (a "git-symbolic-ref HEAD refs/head/published" would not be propagated to the remote repo) This is similar to "How do I delete origin/master in Git". As said in this thread: (emphasis mine) "git...