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What is the difference between Ruby 1.8 and Ruby 1.9
...m not clear on the differences between the "current" version of Ruby (1.8) and the "new" version (1.9). Is there an "easy" or a "simple" explanation of the differences and why it is so different?
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How can I check if character in a string is a letter? (Python)
I know about islower and isupper , but can you check whether or not that character is a letter?
For Example:
6 Answers
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Fastest way to count exact number of rows in a very large table?
...ECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
25 Answers
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How to move a git repository into another directory and make that directory a git repository?
... cp -r gitrepo1 newrepo
# remove .git from old repo to delete all history and anything git from it
$ rm -rf gitrepo1/.git
Note that the copy is quite expensive if the repository is large and with a long history. You can avoid it easily too:
# move the directory instead
$ mv gitrepo1 newrepo
# m...
How to bind inverse boolean properties in WPF?
...I need to go with a solution that "I" will remember, which I will use over and over. I also feel that the less wordy something is the better, and creating an inverse property is very explicit, making it easy for me to remember, as well as future dev's ( I Hope, I Hope ), to be able to quickly see ...
How to convert/parse from String to char in java?
How do I parse a String value to a char type, in Java?
14 Answers
14
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
....rfind("titi") returns 2 so when compared against == 0 would return false) and it would be inefficient (looking through the whole string instead of just the start). But it does not do that because it passes the pos parameter as 0, which limits the search to only match at that position or earlier. Fo...
How to disable “Save workspace image?” prompt in R?
...
You can pass the --no-save command line argument when you start R, or you can override the q function:
utils::assignInNamespace(
"q",
function(save = "no", status = 0, runLast = TRUE)
{
.Internal(quit(save, status, runLast))
},
"base"
)
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Cannot kill Python script with Ctrl-C
...thread, but because your threads aren't in daemon mode, they keep running, and that keeps the process alive. We can make them daemons:
f = FirstThread()
f.daemon = True
f.start()
s = SecondThread()
s.daemon = True
s.start()
But then there's another problem - once the main thread has started your ...
How to draw a line in android
Can anybody tell how to draw a line in Android, perhaps with an example?
15 Answers
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