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Should you commit .gitignore into the Git repos?
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If you already have a file checked in, and you want to ignore it, Git will not ignore the file if you add a rule later. In those cases, you must untrack the file first, by running the following command in your terminal: git rm --cached FILENAME
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What is the “Execute Around” idiom?
...e Around" idiom (or similar) I've been hearing about?
Why might I use it, and why might I not want to use it?
8 Answers
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Can virtual functions have default parameters?
If I declare a base class (or interface class) and specify a default value for one or more of its parameters, do the derived classes have to specify the same defaults and if not, which defaults will manifest in the derived classes?
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What is fastest children() or find() in jQuery?
...f performance is truly an issue, then experiment to find the best solution and use that (or see some of the benchmarks in the other answers here).
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How to import an excel file in to a MySQL database
...SCAPED BY '\'
Check your data. Sometimes quoting or escaping has problems, and you need to adjust your source, import command-- or it may just be easier to post-process via SQL.
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What would cause an algorithm to have O(log log n) complexity?
... 16
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
This process takes 16 steps, and it's also the case that 65,536 = 216.
But, if we take the square root at each level, we get
√65,536 = 256
√256 = 16
√16 = 4
√4 = 2
Notice that it only takes four steps to get all the way down to 2. Why is this?...
Best practices for reducing Garbage Collector activity in Javascript
... the 'sawtooth' output from the Memory timeline in the Chrome dev tools) - and this often impacts the performance of the application.
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When is null or undefined used in JavaScript? [duplicate]
...e DOM methods getElementById(), nextSibling(), childNodes[n], parentNode() and so on return null (defined but having no value) when the call does not return a node object.
The property is defined, but the object it refers to does not exist.
This is one of the few times you may not want to test fo...
An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
I Installed DotNetOpenAuth SDK-3.4.5.10201.vsix and I can't get it working.
It works locally (when I run as localhost) but when i try to publish it ain't working.
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Rails: How does the respond_to block work?
I'm going through the Getting Started with Rails guide and got confused with section 6.7. After generating a scaffold I find the following auto-generated block in my controller:
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