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Proper stack and heap usage in C++?
... like this:
a = b;
swap them like this:
a.swap(b);
because it's much faster and it doesn't throw exceptions. The only requirement is that you don't need b to continue to hold the same value (it's going to get a's value instead, which would be trashed in a = b).
The downside is that this appro...
Will the Garbage Collector call IDisposable.Dispose for me?
... use lots of objects that will be short lived. So those should be easy and fast for the GC to get to - Gen 0 objects. So when there is memory pressure, the first thing it does is a Gen 0 collection.
Now, if that doesn't resolve enough pressure, then it goes back and does a Gen 1 sweep (redoing Gen...
What is the difference between an Azure Web Site and an Azure Web Role
..., Joomla, Django, MediaWiki, etc.)
Use of SQL Database or MySQL
Simple and fast to scale from free tier to shared tier to dedicated tier
Web Jobs
Backups of Web Site content
Built-in web-based debugging tools (simple cmd/powershell debug console, process explorer, diagnostic tools like log streaming...
HTML5 dragleave fired when hovering a child element
... the #drop::before or ::after. Also, beware that sometimes, when dragging fast, the "dragleave" fires before the "dragenter" has finished. If the dragenter add the class/pseudoelement, and the dragleave removes then, this can cause problem.
– le hollandais volant
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postgresql COUNT(DISTINCT …) very slow
...FROM (SELECT DISTINCT column_name FROM table_name) AS temp;
This is much faster than:
COUNT(DISTINCT column_name)
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What does extern inline do?
...o use the inline keyword as a suggestion that "calls to the function be as fast as possible" (ISO 9899:1999 §6.7.4 (5) , extern inline counts
– puetzk
May 11 '17 at 16:42
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How to avoid long nesting of asynchronous functions in Node.js
...s many premade functions prepared for async to be called from util.js very fast. Just chain up what you want to do, make sure o,cb is universally handled. This speeds up the whole coding process a lot.
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What is the difference between 'git pull' and 'git fetch'?
...ointer changes, and merge refuses to do anything. pull, on the other hand, fast-forwards my tracking branch.
– Roman Starkov
Sep 28 '12 at 16:23
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Remove duplicate rows in MySQL
...32/199364 instead. IMHO, ALWAYS use the linked approach; its an inherently faster technique.
– ToolmakerSteve
Mar 8 '19 at 14:52
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Why is SCTP not much used/known
...ent. One of these changes is to replace SS7 protocol by some more elegant, fast and flexible IP-based protocol.
The telecom area is very conservative. The SS7 network has been used here for decades. It is very a reliable and closed network. This means a regular user has no access to it.
The IP net...