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What are the differences between struct and class in C++?
...ween class and struct is defined in (11.2):
Member of a class defined with the
keyword class are private by
default. Members of a class defined
with the keywords struct or union
are public by default.
Additional difference: the keyword class can be used to declare template parameters, ...
What is the preferred syntax for defining enums in JavaScript?
...
Since 1.8.5 it's possible to seal and freeze the object, so define the above as:
const DaysEnum = Object.freeze({"monday":1, "tuesday":2, "wednesday":3, ...})
or
const DaysEnum = {"monday":1, "tuesday":2, "wednesday":3, ...}
Object.free...
Is object empty? [duplicate]
...
I'm assuming that by empty you mean "has no properties of its own".
// Speed up calls to hasOwnProperty
var hasOwnProperty = Object.prototype.hasOwnProperty;
function isEmpty(obj) {
// null and undefined are "empty"
if (obj == null) return true;
// Assume if it has a...
Why should I use a pointer rather than the object itself?
I'm coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration:
...
Get the first element of an array
..., if a array "copy" is needed:
array_shift(array_slice($array, 0, 1));
With PHP 5.4+ (but might cause an index error if empty):
array_values($array)[0];
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How can I clear or empty a StringBuilder? [duplicate]
I'm using a StringBuilder in a loop and every x iterations I want to empty it and start with an empty StringBuilder , but I can't see any method similar to the .NET StringBuilder.Clear in the documentation, just the delete method which seems overly complicated.
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How to run Conda?
I installed Anaconda and can run Python, so I assume that I installed it correctly. Following this introductory documentation , I am trying to install Python v3.3, so I am copying and pasting the following line into my console:
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How to create a directory if it doesn't exist using Node.js?
Is this the right way to create a directory if it doesn't exist.
It should have full permission for the script and readable by others.
...
Entity Framework is Too Slow. What are my options? [closed]
...e "Don't Optimize Prematurely" mantra and coded up my WCF Service using Entity Framework.
13 Answers
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What are the true benefits of ExpandoObject?
The ExpandoObject class being added to .NET 4 allows you to arbitrarily set properties onto an object at runtime.
10 Answ...