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Why do enum permissions often have 0, 1, 2, 4 values?
...two and I can do this:
var permissions = Permissions.Read | Permissions.Write;
And perhaps later...
if( (permissions & Permissions.Write) == Permissions.Write )
{
// we have write access
}
It is a bit field, where each set bit corresponds to some permission (or whatever the enumerated ...
Does Firefox support position: relative on table elements?
When I try to use position: relative / position: absolute on a <th> or <td> in Firefox it doesn't seem to work.
...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
...
AWS / Heroku are both free for small hobby projects (to start with).
If you want to start an app right away, without much customization of the architecture, then choose Heroku.
If you want to focus on the architecture and to be able to use different web servers, then choose AWS. AWS i...
What's the advantage of Logic-less template (such as mustache)?
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In other words, it prevents you from shooting yourself in the foot. In the old JSP days, it was very common to have JSP files sprinkled with Java code, which made refactoring much harder, since you had your code scattered.
If you prevent lo...
AngularJS : The correct way of binding to a service properties
...e... I'm giving this point a neutral rating so you decide for yourself)
+1 It may be convenient that the controller acts as a sort of API for the markup such that if somehow the structure of the data model changes you can (in theory) update the controller's API mappings without touching the html par...
How do I set the value property in AngularJS' ng-options?
... select as label group by group for (key, value) in object
In your case, it should be
array = [{ "value": 1, "text": "1st" }, { "value": 2, "text": "2nd" }];
<select ng-options="obj.value as obj.text for obj in array"></select>
Update
With the updates on AngularJS, it is now possi...
Can you make valid Makefiles without tab characters?
... have a tab character preceding the the content of each command line, or it throws a syntax error.
10 Answers
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Database Design for Revisions?
...quirement in project to store all the revisions(Change History) for the entities in the database. Currently we have 2 designed proposals for this:
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What exactly is Apache Camel?
...ve 5 to 10 minutes, I generally recommend people to read this Integration with Apache Camel by Jonathan Anstey. It's a well written piece which gives a brief introduction to and overview of some of Camel's concepts, and it implements a use case with code samples. In it, Jonathan writes:
Apache C...
How to check task status in Celery?
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@Chris The controversy with @gregor code is in the instantiation of async_result. In your use case you already has the instance, you are good to go. But what happen if you only have the task id, and need to instantiate an async_result instance to be...