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Is iterating ConcurrentHashMap values thread safe?
...if an existing iterator will reflect later changes to the map. So I don't know, and by specification no one does (without looking at the code, and that may change with every update of the runtime). So you can't rely on it.
– Waldheinz
Oct 3 '15 at 8:06
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Why are margin/padding percentages in CSS always calculated against width?
...al reasoning of why the spec is written this way is still, technically, unknown.
Element height is defined by the height of the
children. If an element has padding-top: 10% (relative to parent
height), that is going to affect the height of the parent. Since the
height of the child is depen...
How to have favicon / icon set when bookmarklet dragged to toolbar?
...nize, and select Import
Import HTML file you just edited, your bookmarklet now has a favicon.
Basically the procedure is to get ICON attribute of a bookmark tag and insert it into bookmarklet tag
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What is Domain Driven Design?
...ER (not so complete :))
In order to create good software, you have to know what that software
is all about. You cannot create a banking software system unless you
have a good understanding of what banking is all about, one must
understand the domain of banking.
From: Domain Driven Design...
What's the difference between returning void and returning a Task?
...ethod until it is completely finished and then pick up where you left off, now knowing the result of the method".
Edit: I should cite Eric Lippert's article in October 2011 MSDN Magazine as this was a great help to me in understanding this stuff in the first place.
For loads more infromation and...
MongoDB with redis
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Redis and MongoDB can be used together with good results. A company well-known for running MongoDB and Redis (along with MySQL and Sphinx) is Craiglist. See this presentation from Jeremy Zawodny.
MongoDB is interesting for persistent, document oriented, data indexed in various ways. Redis is more ...
Getting a list of files in a directory with a glob
...wesome... I have been pissing around with other approaches for a whole day now! Great. The main trick is just knowing what to search for on StackO!
– Cliff Ribaudo
Jan 13 '12 at 0:29
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Redis strings vs Redis hashes to represent JSON: efficiency?
...:
If you use just single fields on most of your accesses.
If you always know which fields are available
P.S.: As a rule of the thumb, go for the option which requires fewer queries on most of your use cases.
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Why isn't textarea an input[type=“textarea”]?
...ut[type="text"] can take the readonly attribute too. Which is sort of odd, now that you point it out! w3.org/TR/html-markup/input.text.html#input.text.attrs.readonly
– Matt
Jul 10 '14 at 21:29
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Which is faster: while(1) or while(2)?
...human to read! If I see while(1) in an unfamiliar codebase, I immediately know what the author intended, and my eyeballs can continue to the next line.
If I see while(2), I'll probably halt in my tracks and try to figure out why the author didn't write while(1). Did the author's finger slip on the ...