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Using sed, how do you print the first 'N' characters of a line?
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Actually on a Cygwin system I'm working on now cut doesn't cut it while sed does.
– kqw
Feb 17 '16 at 9:52
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jQuery UI “ $(”#datepicker“).datepicker is not a function”
... a reference to my own jQuery library along with jQuery Tools CDN which unknowingly included jQuery.
– DavGarcia
Apr 23 '13 at 19:47
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Subclipse svn:ignore
...folder and use the shortcut (Ctrl + Alt + I) to add it to ignore. I don't know why this works and the menu doesn't, it might be a bug.
– Andrei B.
Mar 4 '13 at 10:22
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Is there a way of making strings file-path safe in c#?
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Here's the function that I am using now (thanks jcollum for the C# example):
public static string MakeSafeFilename(string filename, char replaceChar)
{
foreach (char c in System.IO.Path.GetInvalidFileNameChars())
{
filename = filename.Replace(c...
Understanding keystore, certificates and alias
...the public key (the certificate) for that alias is embedded into the APK.
Now to answer your question, you can only release an update to an application that was signed with the alias 'foo' by signing the update again with the same alias. Losing the keystore where your alias is stored would prevent ...
Django: Get an object form the DB, or 'None' if nothing matches
... = models.CharField(max_length=255)
objects = GetOrNoneManager()
And now I can do this:
bob_or_none = Person.objects.get_or_none(name='Bob')
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Max length for client ip address [duplicate]
... a database column storing client ip addresses? I have it set to 16 right now, but could I get an ip address that is longer than that with IPv6, etc?
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Pretty-print an entire Pandas Series / DataFrame
...n printed. If the above answer did not work for previous versions, it does now.
– H Froedge
Sep 28 '18 at 7:02
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What is SuppressWarnings (“unchecked”) in Java?
...ype (this is the only thing it can verify, so it verifies only that).
But now add this line.
Integer hello = actualList.get(0);
And JVM will throw an unexpected ClassCastException, as Java compiler inserted an implicit cast.
java.lang.ClassCastException: java.base/java.lang.String cannot be cas...
Replace non-ASCII characters with a single space
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Yes, I know this does not work for this question, but I landed here trying to solve that problem, so I thought I’d just share my solution to my own problem, which I think is very common for people as @dotancohen who deal with non-a...