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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...rer :) I didn't realize the efficiency difference - that's very useful to know. Same for the hoisting effect - tricky, indeed. Thanks for such a great answer, I learned a lot from it!
– Leo
Dec 22 '10 at 11:09
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How can I get a count of the total number of digits in a number?
...t is still slow for Platform = x86 (I could not find the reason why, until now).
The STRING method is consistently slow: it greedily allocates too much memory for nothing. Interestingly, in .NET Core, string allocation seems to be much faster than in .NET Framework. Good to know.
The IF-CHAIN meth...
What is scope/named_scope in rails?
...a collection. Sounds complicated? It isn't. Imagine this:
You have Users. Now, some of those Users are subscribed to your newsletter. You marked those who receive a newsletter by adding a field to the Users Database (user.subscribed_to_newsletter = true). Naturally, you sometimes want to get those ...
MySQL, better to insert NULL or empty string?
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I don't know what best practice would be here, but I would generally err in favor of the null unless you want null to mean something different from empty-string, and the user's input matches your empty-string definition.
Note that I'...
Find Java classes implementing an interface [duplicate]
...functionality to locate the classes that implemented a given interface. I know the functions were hidden in some non-logical place, but they could be used for other classes as the package name implied. Back then I did not need it, so I forgot about it, but now I do, and I can't seem to find the func...
How to add an object to an array
...uestion: myArray = []; myArray.push({'text': 'some text', 'id' : 13}); and now myArray is empty. So if we try get the value from myArray[0]['text'] it will be empty, why? take.ms/jSvbn
– fdrv
Mar 16 '16 at 14:55
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Unit testing Anti-patterns catalogue
... Act some more >> Assert B >> Act some more >> Assert C. Now ideally if A and C are broken, you should see 2 test failures. With the above test, you'd see only one, then you fix A and on the next run, it'd tell you that now C is broken. now imagine 5-6 distinct tests fused together...
What is the difference between client-side and server-side programming?
...le. The <?php echo 42; ?> call resulted in the output "42", which is now in the spot where that code used to be.
This resulting HTML/JavaScript code is now sent to the client, where it gets evaluated. The alert call works, while the foo variable is not used anywhere.
All PHP code is executed...
Why is “except: pass” a bad programming practice?
... catch any error
When using a try block, you usually do this because you know that there is a chance of an exception being thrown. As such, you also already have an approximate idea of what can break and what exception can be thrown. In such cases, you catch an exception because you can positively ...
How to export iTerm2 Profiles
I needed to reformat my computer and now I'm having trouble copying the settings/profiles over.
6 Answers
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