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How do I clone a Django model instance object and save it to the database?
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Worth noting that this quotes Django 1.2, we're now up to Django 1.4. Haven't tested whether or not this works, but don't use this answer without being sure that it works for you.
– Joe
Oct 4 '12 at 11:37
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How do I time a method's execution in Java?
...ited Jul 8 '16 at 21:49
michaelsnowden
5,33022 gold badges2727 silver badges6767 bronze badges
answered Oct 7 '08 at 20:16
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Efficient string concatenation in C++
...ly will have much better efficiency simply by using operator += instead.
Now after that disclaimer, I will answer your actual question...
The efficiency of the STL string class depends on the implementation of STL you are using.
You could guarantee efficiency and have greater control yourself by...
What is Node.js? [closed]
...vent loops with first class function objects and closures. People already know how to use it this way having used it in the browser to respond to user initiated events.
A lot of people already know JavaScript, even people who do not claim to be programmers. It is arguably the most popular programmin...
Adding code to a javascript function programmatically
... @gdoron: I just added a comment. Unless I'm just really confused right now, I don't know of any browser that won't accept an actual Arguments object as the second arg for .apply(). But if it was an Array-like object like a jQuery object for example, then yes, some browsers would throw an error
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What is an efficient way to implement a singleton pattern in Java? [closed]
...s to be final. In this case, I've used the final keyword to let the users know it is final. Then you need to make the constructor private to prevent users to create their own Foo. Throwing an exception from the constructor prevents users to use reflection to create a second Foo. Then you create a pr...
How does the following LINQ statement work?
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@M.C I don't know why you are asking this question. Whole answer was not given at a time. It was edited several times.
– Atish Dipongkor - MVP
Jul 18 '13 at 2:50
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git - Server host key not cached
...rust the remote host (i.e. type yes), SSH will add its key to the list of known hosts.
After that, you should be able to do your git push origin.
As an alternative, you could also manually add the key of origin to .ssh/known_hosts but this requires that you adhere to the format of the known_hosts ...
Are PHP short tags acceptable to use?
...ags, you'll still need to use <?php echo ... ?>.
Also, you need to know that ASP tags <% , %> , <%= , and script tag are removed from PHP 7. So if you would like to support long-term portable code and would like switching to the most modern tools consider changing that parts of code...
How to get first N elements of a list in C#?
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I believe this answer is useful even now, 10 years and many C# versions later. For the specific case where you have a list. Especially if you are skipping many items. E.g. you have a list of one million items, and you want a slice of 5 of them, far into the list...