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Why does C# allow {} code blocks without a preceding statement?
...s C# allow code blocks without a preceding statement (e.g. if , else , for , while )?
9 Answers
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Disable a group of tests in rspec?
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To disable a tree of specs using RSpec 3 you can:
before { skip }
# or
xdescribe
# or
xcontext
You can add a message with skip that will show up in the output:
before { skip("Awaiting a fix in the gem") }
with RSpec 2:
before { pending }
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How to get the device's IMEI/ESN programmatically in android?
To identify each devices uniquely I would like to use the IMEI (or ESN number for CDMA devices). How to access this programmatically?
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How best to determine if an argument is not sent to the JavaScript function
I have now seen 2 methods for determining if an argument has been passed to a JavaScript function. I'm wondering if one method is better than the other or if one is just bad to use?
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How to call a JavaScript function from PHP?
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As far as PHP is concerned (or really, a web server in general), an HTML page is nothing more complicated than a big string.
All the fancy work you can do with language like PHP - reading from databases and web services and all that - the ultimate end ...
Cleanest way to toggle a boolean variable in Java?
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@user515655 - The language defines a -- operator (actually, two of them, along with two ++ operators), but doesn't define a !! operator. If you want -(-(integer)) you can use white space between the two - characters. But !! parses as two ! operators regardless of white s...
How do I copy a version of a single file from one git branch to another?
...u want the file to end up:
git checkout otherbranch myfile.txt
General formulas:
git checkout <commit_hash> <relative_path_to_file_or_dir>
git checkout <remote_name>/<branch_name> <file_or_dir>
Some notes (from comments):
Using the commit hash you can pull files...
Android JSONObject - How can I loop through a flat JSON object to get each key and value
How I can get each item's key and value without knowing the key nor value beforehand?
5 Answers
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
...ng an app on Heroku with a Postgresql backend. Periodically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server:
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How to handle exceptions in a list comprehensions?
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There is no built-in expression in Python that lets you ignore an exception (or return alternate values &c in case of exceptions), so it's impossible, literally speaking, to "handle exceptions in a list comprehension" because a list comprehension is an expression containing other...