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Get the length of a String
...Before Swift 2.0, count was a global function. As of Swift 2.0, it can be called as a member function.
test1.characters.count
It will return the actual number of Unicode characters in a String, so it's the most correct alternative in the sense that, if you'd print the string and count characters ...
Best Practice for Exception Handling in a Windows Forms Application?
...standing of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translate the basic concepts into a good exception-handling model in my application.
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Regular Expressions: Is there an AND operator?
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It should be mentioned that this particular example is called a positive lookahead assertion. It has other uses than "and". Note that the text isn't consumed.
– strager
Jan 22 '09 at 21:11
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How to remove \xa0 from string in Python?
I am currently using Beautiful Soup to parse an HTML file and calling get_text() , but it seems like I'm being left with a lot of \xa0 Unicode representing spaces. Is there an efficient way to remove all of them in Python 2.7, and change them into spaces? I guess the more generalized question would...
bash: shortest way to get n-th column of output
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Passing an appropriate delimiter to -d allows this to work.
– Yogh
Sep 27 '15 at 22:43
6
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When do you use POST and when do you use GET?
... POST action in the address bar of your browser. Use GET when it's safe to allow a person to call an action. So a URL like:
http://myblog.org/admin/posts/delete/357
Should bring you to a confirmation page, rather than simply deleting the item. It's far easier to avoid accidents this way.
POST is...
How to do associative array/hashing in JavaScript
...numbers as index.
Create an object with
var dictionary = {};
JavaScript allows you to add properties to objects by using the following syntax:
Object.yourProperty = value;
An alternate syntax for the same is:
Object["yourProperty"] = value;
If you can, also create key-to-value object maps with...
pdftk compression option
...ad for more details). Both reduced the size of my uncompressed PDF dramatically.
Pixelated (lossy):
convert input.pdf -compress Zip output.pdf
Unpixelated (lossless, but may display slightly differently):
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -d...
How to fix Error: listen EADDRINUSE while using nodejs?
... should check for the listening event like this, to see if the server is really listening:
var http=require('http');
var server=http.createServer(function(req,res){
res.end('test');
});
server.on('listening',function(){
console.log('ok, server is running');
});
server.listen(80);
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ASP.NET custom error page - Server.GetLastError() is null
...rror.aspx" redirectMode="ResponseRewrite" />
the ResponseRewrite mode allows us to load the «Error Page» without redirecting the browser, so the URL stays the same, and importantly for me, exception information is not lost.
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