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How do I check for a network connection?
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You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable():
System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()
To monitor changes in IP address or changes in network availability use the events from the NetworkChange class:
Syst...
How to get row from R data.frame
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130
x[r,]
where r is the row you're interested in. Try this, for example:
#Add your data
x <-...
Right way to reverse pandas.DataFrame?
...n__() which returns 6. Then it tries to call data[j - 1] for j in range(6, 0, -1), and the first call would be data[5]; but in pandas dataframe data[5] means column 5, and there is no column 5 so it will throw an exception. ( see docs )
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How can I switch my git repository to a particular commit
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answered Feb 9 '11 at 0:17
ArtefactoArtefacto
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Calculate a Running Total in SQL Server
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Update, if you are running SQL Server 2012 see: https://stackoverflow.com/a/10309947
The problem is that the SQL Server implementation of the Over clause is somewhat limited.
Oracle (and ANSI-SQL) allow you to do things like:
SELECT somedate, somevalue,
SU...
How to trim leading and trailing white spaces of a string?
... Denys SéguretDenys Séguret
321k6969 gold badges680680 silver badges668668 bronze badges
2
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How did Google manage to do this? Slide ActionBar in Android application
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150
In fact, there's a way to do this. Even without implementing your own ActionBar.
Just have a lo...
What is the difference between the mouseover and mouseenter events?
...at makes it very clear and you can actually see for yourself.
var i = 0;
$("div.overout")
.mouseover(function() {
i += 1;
$(this).find("span").text("mouse over x " + i);
})
.mouseout(function() {
$(this).find("span").text("mouse out ");
});
var n = 0;
$("div.ente...
Pry: show me the stack
...play the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller.rb @ line 7 PostsController#index:
5: def index
6: @posts = Post.all
=> 7: binding.pry
8: end
[1] pry(#<P...
How to npm install to a specified directory?
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340
You can use the --prefix option:
mkdir -p ./install/here/node_modules
npm install --prefix ./in...