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OO Design in Rails: Where to put stuff
... really enjoying Rails (even though I'm generally RESTless), and I enjoy Ruby being very OO. Still, the tendency to make huge ActiveRecord subclasses and huge controllers is quite natural (even if you do use a controller per resource). If you were to create deeper object worlds, where would you put ...
Encrypt Password in Configuration Files? [closed]
... would like to encrypt the password in that configuration that can be read by my program and decrypted.
10 Answers
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Order of member constructor and destructor calls
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In other words, are members guaranteed to be initialized by order of declaration and destroyed in reverse order?
Yes to both. See 12.6.2
6 Initialization shall proceed in the
following order:
First, and only for
the constructor of the most derived
class as described below, virtu...
Testing HTML email rendering [closed]
...oth Campaign Monitor and Mailchimp's internal testing services are powered by Litmus.
– John
May 16 '14 at 16:09
5
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How can I get the length of text entered in a textbox using jQuery?
...ength = $("#mytextbox").val().length;
$("#mytextbox") finds the textbox by its id.
.val() gets the value of the input element entered by the user, which is a string.
.length gets the number of characters in the string.
s...
How to get the first column of a pandas DataFrame as a Series?
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Would be worth adding the .iloc alternative (as proposed by Jeff further down on this page), as it is not ambiguous in the presence of columns with numbers for names.
– sapo_cosmico
Apr 16 '16 at 14:04
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Count the items from a IEnumerable without iterating?
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IEnumerable doesn't support this. This is by design. IEnumerable uses lazy evaluation to get the elements you ask for just before you need them.
If you want to know the number of items without iterating over them you can use ICollection<T>, it has a Count prop...
Best way to add page specific JavaScript in a Rails 3 app?
... have extra js assets which are combined and only loaded on specific pages by splitting your js into groups which only apply in certain controllers/views/sections of the site.
Move your js in assets into folders, with a separate manifest file for each, so if you had an admin js library that is onl...
Difference between numeric, float and decimal in SQL Server
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use the float or real data types only if the precision provided by decimal (up to 38 digits) is insufficient
Approximate numeric data types do not store the exact values specified for many numbers; they store an extremely close approximation of the value.(Technet)
Avoid using float or ...
Java Garbage Collection Log messages
...776768K), 1.8479984 secs]
Here we see two minor collections followed by one major collection. The numbers before and after the arrow (e.g., 325407K->83000K from the first line) indicate the combined size of live objects before and after garbage collection, respectively. After minor collecti...