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Difference between Activity and FragmentActivity
I was working on fragments and came across two things Activity and FragmentActivity which are used several times. I want to know that is there any difference between these two, because when I changed Activity with FragmentActivity , it had no effect on the app.
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MongoDB: Find a document by non-existence of a field?
...operator:
db.mycollection.find({ "price" : { "$exists" : false } })
and see its documentation.
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jQuery.active function
... in the library, it seems to be there exclusively to support $.ajaxStart() and $.ajaxStop() (which I'll explain further), but they only care if it's 0 or not when a request starts or stops. But, since there's no reason to hide it, it's exposed to you can see the actual number of simultaneous AJAX r...
Browser support for URLs beginning with double slash
... few links used without a protocol. It didn't seem too difficult to understand - I think it's a great idea and pretty intuitive.
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How do I parse a YAML file in Ruby?
...ssing something, but why try to parse the file? Why not just load the YAML and examine the object(s) that result?
If your sample YAML is in some.yml, then this:
require 'yaml'
thing = YAML.load_file('some.yml')
puts thing.inspect
gives me
{"javascripts"=>[{"fo_global"=>["lazyload-min", "...
Create a devise user from Ruby console
Any idea on how to create and save a new User object with devise from the ruby console?
5 Answers
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Func with out parameter
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ref and out are not part of the type parameter definition so you can't use the built-in Func delegate to pass ref and out arguments. Of course, you can declare your own delegate if you want:
delegate V MyDelegate<T,U,V>(T ...
Stream.Seek(0, SeekOrigin.Begin) or Position = 0
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Use Position when setting an absolute position and Seek when setting a relative position. Both are provided for convenience so you can choose one that fits the style and readability of your code. Accessing Position requires the stream be seekable so they're safely interch...
Git push to wrong branch
Working with git, after some 'commit', and a couple of 'push', I realized that am using the wrong branch !
3 Answers
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Best way to store date/time in mongodb
I've seen using strings, integer timestamps and mongo datetime objects.
2 Answers
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