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How can I add a key/value pair to a JavaScript object?
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Passing parameters to addTarget:action:forControlEvents
...ust check (objectClass *)[button.layer valueForKey:@"anyKey"]; It's like a more free version of .tag
– Albert Renshaw
Oct 14 '16 at 20:40
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Cache an HTTP 'Get' service response in AngularJS?
...to enable or disable caching of the HTTP response. See
$http Caching for more
information.
Boolean value
So you can set cache to true in its options:
$http.get(url, { cache: true}).success(...);
or, if you prefer the config type of call:
$http({ cache: true, url: url, method: 'GET'}).succ...
Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...ight into it. Even then, it is often good to unwrap the optional and use a more descriptive assert if it is nil.
When Not To Use An Implicitly Unwrapped Optional
1. Lazily Calculated Member Variables
Sometimes you have a member variable that should never be nil, but it cannot be set to the correc...
Returning multiple values from a C++ function
...u should look at boost::tuple (in C++11 and newer, there's std::tuple) for more than two return results.
With introduction of structured binding in C++ 17, returning std::tuple should probably become accepted standard.
shar...
Should I return EXIT_SUCCESS or 0 from main()?
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What are the rules for evaluation order in Java?
...e different. Coming up with an actual rule that covers all cases is rather more difficult. The designers of C# and Java chose a simple, easy-to-explain rule: "go left-to-right". What is your proposed replacement for it, and why do you believe your rule is better?
– Eric Lippert...
Should you always favor xrange() over range()?
...on or even just normal indexing, xrange() will work fine (and usually much more efficiently). There is a point where range() is a bit faster than xrange() for very small lists, but depending on your hardware and various other details, the break-even can be at a result of length 1 or 2; not something...
What does it mean to hydrate an object?
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With respect to the more generic term hydrate
Hydrating an object is taking an object that exists in memory, that doesn't yet contain any domain data ("real" data), and then populating it with domain data (such as from a database, from the netw...