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What is the difference between '@' and '=' in directive scope in AngularJS?
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@JonathanAquino, yes that works, but @ would be more appropriate -- with foo="{{1+1}}" -- because we don't need two-way data binding here. The point I tried to make in the comment above is that we should use = only when the directive needs two-way data binding. Use @ or ...
Running shell command and capturing the output
... works on almost all versions of Python still in wide use (2.7+).2 But for more recent versions, it is no longer the recommended approach.
Modern versions of Python (3.5 or higher): run
If you're using Python 3.5 or higher, and do not need backwards compatibility, the new run function is recommend...
SQL select only rows with max value on a column [duplicate]
...our point, this is why I called it group_identifier, which could be one or more columns. In your case, group_identifier is the combination of name and age
– Adriano Carneiro
Dec 12 '12 at 16:50
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What does a tilde do when it precedes an expression?
... If you profiled your application and found a bottleneck, it could be made more performant by using bitwise tricks (as one possible tool in a much bigger bag).
It's also a (generally) unclear trick to turn indexOf()'s found return value into truthy (while making not found as falsy) and people often...
Converting bool to text in C++
...< std::boolalpha << f << std::endl;
UPDATE:
If you want more than 4 lines of code without any console output, please go to cppreference.com's page talking about std::boolalpha and std::noboolalpha which shows you the console output and explains more about the API.
Additionally u...
Regex for numbers only
...ors.
Regex regex = new Regex(@"^\d$");
Use "^\d+$" if you need to match more than one digit.
Note that "\d" will match [0-9] and other digit characters like the Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩. Use "^[0-9]+$" to restrict matches to just the Arabic numerals 0 - 9.
If you need t...
Should I embed images as data/base64 in CSS or HTML
...S sprites) when IE compatibility doesn't matter, and saving the request is more important than cacheability.
It has a number of notable downsides:
Doesn't work at all in IE6 and 7.
Works for resources only up to 32k in size in IE8. This is the limit that applies after base64 encoding. In other...
How many parameters are too many? [closed]
... A good rule-of-thumb is the number of CPU registers, because anymore and the compiler will be forced to allocate them on the stack.
– Michaelangel007
Mar 31 '16 at 14:10
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Visualizing branch topology in Git
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Interface vs Abstract Class (general OO)
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http://www.gotw.ca/publications/mill18.htm
http://en.wikibooks.org/wiki/More_C%2B%2B_Idioms/Non-Virtual_Interface
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