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What is a callback function?
...e often confused by what a callback is because of the name of the damned thing.
A callback function is a function which is:
accessible by another function, and
is invoked after the first function if that first function completes
A nice way of imagining how a callback function works is that it i...
decompiling DEX into Java sourcecode
How can one decompile Android DEX (VM bytecode) files into corresponding Java sourcecode?
17 Answers
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How do I ignore all files in a folder with a Git repository in Sourcetree?
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This should be added inside each folder you want to track. The existence of this file itself will make git track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
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Using curl POST with variables defined in bash script functions
When I echo I get this, which runs when I enter it into the terminal
7 Answers
7
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Installed Java 7 on Mac OS X but Terminal is still using version 6
I've installed JDK 7u7 downloaded from oracle's website. But after installation, the terminal is still showing java version 6
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Open and write data to text file using Bash?
How can I write data to a text file automatically by shell scripting in Linux?
11 Answers
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How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Unique random string generation
I'd like to generate random unique strings like the ones being generated by MSDN library.( Error Object ), for example. A string like 't9zk6eay' should be generated.
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Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?
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As another option, you can do look ups like:
class UserAdmin(admin.ModelAdmin):
list_display = (..., 'get_author')
def get_author(self, obj):
return obj.book.author
get_author.short_description = 'Author'
get_author.admin_order_field = 'book__author'
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Hash String via SHA-256 in Java
By looking around here as well as the internet in general, I have found Bouncy Castle . I want to use Bouncy Castle (or some other freely available utility) to generate a SHA-256 Hash of a String in Java. Looking at their documentation I can't seem to find any good examples of what I want to do. Ca...