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Saving enum from select in Rails 4.1
...ast.status
Contract Load (0.2ms) SELECT "contracts".* FROM "contracts" ORDER BY "contracts"."id" DESC LIMIT ? [["LIMIT", 1]]
=> "active"
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#include in .h or .c / .cpp?
...ample above, then header A should include header B directly. Do NOT try to order your includes in the .c file to satisfy dependencies (that is, including header B before header A); that is a big ol' pile of heartburn waiting to happen. I mean it. I've been in that movie several times, and it alway...
Why should a Java class implement comparable?
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Comparable defines a natural ordering. What this means is that you're defining it when one object should be considered "less than" or "greater than".
Suppose you have a bunch of integers and you want to sort them. That's pretty easy, just put them in a...
Rails DB Migration - How To Drop a Table?
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@mjnissim and fflyer05 are correct, in order to avoid any weird thing you should recreate the table in the down method.
– Sebastialonso
Jan 23 '15 at 16:43
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How to check file MIME type with javascript before upload?
...es prior to reading? fileReader.readAsArrayBuffer(blob.slice(0,4))? (2) In order to copy/paste file signatures, shouldn't the header be constructed with leading 0's for(var i = 0; i < bytes.length; i++) { var byte = bytes[i]; fileSignature += (byte < 10 ? "0" : "") + byte.toString(16); } ?
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Use of var keyword in C#
... make code more readable in some cases. If I have a Customer class with an Orders property, and I want to assign that to a variable, I will just do this:
var orders = cust.Orders;
I don't care if Customer.Orders is IEnumerable<Order>, ObservableCollection<Order> or BindingList<Orde...
Hashset vs Treeset
... log-time for most operations like add, remove and contains) but offers no ordering guarantees like TreeSet.
HashSet
the class offers constant time performance for the basic operations (add, remove, contains and size).
it does not guarantee that the order of elements will remain constant over ti...
Best way to change the background color for an NSView
... layer-backed views you should never interact directly with the layer. The order of when setWantsLayer: and setLayer: is called is relevant.
– Stephan
Sep 14 '13 at 7:59
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What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
... something else, that the (browser) client needs to pass to the server, in order to allow the server to act on behalf of the particular client.
– Cheeso
Jun 29 '15 at 22:53
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Is there a cross-domain iframe height auto-resizer that works?
.../wp/2010/03/17/resize-iframe-based-on-content/
http://kinsey.no/blog/index.php/2010/02/19/resizing-iframes-using-easyxdm/
Easy XDM works by using PostMessage on modern browsers and a Flash based solution as fallback for older browsers.
See also this thread on Stackoverflow (there are also others, th...