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Global and local variables in R
...
foo <- function() {
bar <- 1
}
foo()
bar
gives the following error: Error: object 'bar' not found.
If you want to make bar a global variable, you should do:
foo <- function() {
bar <<- 1
}
foo()
bar
In this case bar is accessible from outside the function.
However, un...
Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...we make Ajax requests every 100ms and then the network status changes, the error is easy to reproduce. Although most applications probably do not make such requests, you might well have a couple of server calls happening right after each other which could lead to this problem. Less chatty keeps IE h...
How can I set up an editor to work with Git on Windows?
... Git on Windows . I got to the point of trying "git commit" and I got this error:
33 Answers
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Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
... to add - I voted up this answer as I received a crap load of warnings and errors all of a sudden in my Xcode 5 project. You mentioned 64bit which lead me to look at my build settings. Xcode changed it to 64bit mode which threw up errors. Changing it back to arvm7 fixed all of them.
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How can I get the version defined in setup.py (setuptools) in my package?
... installed on your system.
# importing mymodule.myclasses would give ImportError
import dep1
import dep2
problem #1: importing mymodule during setup
If your setup.py imports mymodule then during setup you would most likely get an ImportError. This is a very common error when your package has depe...
What is a “symbol” in Julia?
...You can see the difference by applying eval to them:
julia> eval(:foo)
ERROR: foo not defined
julia> foo = "hello"
"hello"
julia> eval(:foo)
"hello"
julia> eval("foo")
"foo"
What the symbol :foo evaluates to depends on what – if anything – the variable foo is bound to, wherea...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
...tDisposition,mimeType,size)
Event raised when downloading is needed.
OnErrorReceived(id,message,errorCode,url)
Event raised when any error is received during loading url and returns message,error code and failing url
OnFormResubmission(id)
Event raised when resubmission of form is needed
...
Should functions return null or an empty object?
...ned as "no data". That's like stating that a SQL database should return an error if a where clause produces no results. While an Exception is a valid design choice (though one that would irritate me as a consumer), it's not any "more correct" than returning null. And no, I'm not the DV.
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Downloading a large file using curl
...ing is ok with:
if (!$result)
throw new Exception('Download error...');
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How often does python flush to a file?
..._init__.py file before any other code, messages printed with print and any errors will no longer be logged to Ableton's Log.txt but to separate files on your disk:
import sys
path = "/Users/#username#"
errorLog = open(path + "/stderr.txt", "w", 1)
errorLog.write("---Starting Error Log---\n")
sys....