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What is the best django model field to use to represent a US dollar amount?
I need to store a U.S. $ dollar amount in a field of a Django model. What is the best model field type to use? I need to be able to have the user enter this value (with error checking, only want a number accurate to cents), format it for output to users in different places, and use it to calculate...
How do PHP sessions work? (not “how are they used?”)
Session files are usually stored in, say, /tmp/ on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work.
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What's the difference between detaching a Fragment and removing it?
In the Android docs for a FragmentTransaction I noticed two very similar methods: detach and remove . The descriptions over there don't seem to provide much insight about when to use each, and from what I can tell they appear to be the same.
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jQuery’s .bind() vs. .on()
I found two great articles talking about the new function .on() : jquery4u.com , elijahmanor.com .
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How to commit changes to a new branch
I just made changes to a branch. How can I commit the changes to the other branch?
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Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m
I have a unit test where I have to mock a non-virtual method that returns a bool type
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C# DropDownList with a Dictionary as DataSource
I want to set DataTextField and DataValueField of a Dropdownlist (languageList) using a Dictionary (list) of languageCod (en-gb) as key and language name (english) as the text to display.
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What is the _snowman param in Ruby on Rails 3 forms for?
...), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
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Is a RelativeLayout more expensive than a LinearLayout?
I've always been using RelativeLayout everytime I needed a View container, because of it's flexibility, even if I just wanted to display something really simple.
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What are the special dollar sign shell variables?
In Bash, there appear to be several variables which hold special, consistently-meaning values. For instance,
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