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How does the Java 'for each' loop work?
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This answer is now a blog post and was created from two related answers that I've written: here and here. It also includes a generically useful class for comparing the speed of two functions (at the bottom).
– aliteral...
What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...en made to any of those files, Perforce will tell you that those files are now out of date. You will have to sync to the head revision and then resolve the differences. This way you don't inadvertently clobber any changes that you actually want to keep.
Both operations work by essentially submitt...
MySQL Results as comma separated list
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Now only I came across this situation and found some more interesting features around GROUP_CONCAT. I hope these details will make you feel interesting.
simple GROUP_CONCAT
SELECT GROUP_CONCAT(TaskName)
FROM Tasks;
Resul...
Why does jQuery or a DOM method such as getElementById not find the element?
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It's now 2020 — is "Placing scripts at the bottom" still "considered a best practice" ? I (nowdays) put all my resources in the <head> and use defer on scripts (I don't have to support bad-old incompatible browsers)
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How do browsers pause/change Javascript when tab or window is not active?
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Great answer. Any other possible known differences for functions other than setInterval and requestAnimationFrame?
– Andrew Mao
Apr 16 '13 at 20:11
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Can you explain the concept of streams?
...ata, just like water continuously flows in a river. You don't necessarily know where the data is coming from, and most often you don't need to; be it from a file, a socket, or any other source, it doesn't (shouldn't) really matter. This is very similar to receiving a stream of water, whereby you don...
Use of var keyword in C#
...e having the explicit type in front of me when I'm reading code. How do I know what "cust.Orders" is here without the type? Yes, I could hover my mouse over to find out, but why should I have to? :)
– Jon Tackabury
Oct 21 '08 at 18:30
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Is JavaScript guaranteed to be single-threaded?
JavaScript is known to be single-threaded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that JavaScript is always single-threaded?
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在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...makes Android application development more complicated than before because now the application developer has to design their application to deal with different screen sizes and densities. The approach taken by Google is to design several UI versions for your application, complete with each version...
What is Virtual DOM?
... will be created which actually does not do any changes in the actual DOM. Now with this virtual DOM, you will be checking the difference between this and your current DOM. And only the part which is different (in this case the new <div>) will be added instead of re-rendering the whole DOM.
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