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Database sharding vs partitioning
...two words that keep on showing up with regards to databases are sharding and partitioning . I looked up descriptions but still ended up confused.
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What are the functional differences between NW.js, Brackets-Shell and Electron?
...n looking into alternative 'wrappers' to run HTML/CSS/JS applications as stand-alone desktop applications. The three viable options I have run across so far, are NW.js (formerly node-webkit), brackets-shell , and Electron (formerly atom-shell).
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NSOperation vs Grand Central Dispatch
...programming for iOS. So far I've read about NSOperation/NSOperationQueue and GCD . What are the reasons for using NSOperationQueue over GCD and vice versa?
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Difference between MEAN.js and MEAN.io
... noticed that there are two different stacks with either their own website and installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?".
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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...);
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonetheless, it's pro...
In what order are Panels the most efficient in terms of render time and performance?
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I think it is more concise and understandable to describe the performance characteristics of each panel than it is to try to give an absolute relative performance comparison.
WPF makes two passes when rendering content: Measure and Arrange. Each pane...
What are the benefits of learning Vim? [closed]
As a programmer I spend a lot of hours at the keyboard and I've been doing it for the last 12 years, more or less. If there's something I've never gotten used to during all this time, it's these annoying and almost unconscious constant micro-interruptions I experience while coding, due to some of th...
Can you provide some examples of why it is hard to parse XML and HTML with a regex? [closed]
One mistake I see people making over and over again is trying to parse XML or HTML with a regex. Here are a few of the reasons parsing XML and HTML is hard:
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Metadata file '.dll' could not be found
I am working on a WPF, C# 3.0 project, and I get this error:
91 Answers
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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
Sometimes, when using <h:commandLink> , <h:commandButton> or <f:ajax> , the action , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values.
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