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What is the difference between HTTP status code 200 (cache) vs status code 304?

...ll return 304s for many of the page elements. Instead go up to the url bar select the page and hit enter as if you had just typed in the same URL again, that will give you a better indicator of what's being cached properly. This article does a great job explaining the difference between conditional ...
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How I can delete in VIM all text from current line to end of file?

... Just add another way , in normal mode , type ctrl+v then G, select the rest, then D, I don't think it is effective , you should do like @Ed Guiness, head -n 20 > filename in linux. share | ...
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How do you generate dynamic (parameterized) unit tests in python?

... This solution is better than the one selected as accepted IMHO. – petroslamb Jan 18 '16 at 13:42 2 ...
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How to use nodejs to open default browser and navigate to a specific URL

...try spawn("explorer.exe",['stackoverflow.com']), the windows explorer will select the default browser to open the URL. – Qing Xu Dec 14 '11 at 13:56 ...
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What is the fastest way to send 100,000 HTTP requests in Python?

... Make sure you install the epoll reactor; otherwise you'll be using select/poll, and it will be very slow. Also, if you're going to actually try to have 100,000 connections open simultaneously (assuming your program is written that way, and the URLs are on different servers), you'll need to ...
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Can you write virtual functions / methods in Java?

...es to provide the method implementations. The code to execute will only be selected at run time. For example: interface Bicycle { //the function applyBrakes() is virtual because void applyBrakes(); //functions in interfaces are designed to be } //overridd...
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What is sharding and why is it important?

... a DBMS for which the locality is quite restricted (say, a user only fires selects with a 'where username = $my_username') it makes sense to put all the usernames starting with A-M on one server and all from N-Z on the other. By this you get near linear scaling for some queries. Long story short: S...
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PHP json_encode encoding numbers as strings

...ations are not met. If you care about good practices and safety you should selectively convert the values you want. – wadim Aug 11 '14 at 14:50 3 ...
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Facebook Post Link Image

...og:title - The title of the entity. og:type - The type of entity. You must select a type from the list of Open Graph types. og:image - The URL to an image that represents the entity. Images must be at least 50 pixels by 50 pixels. Square images work best, but you are allowed to use images up to thre...
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Using CSS to insert text

...pposed to jQuery is that the text supplied by the content attribute is not selectable, which may or may not be desirable.... – Jeff Apr 23 '13 at 4:41 ...