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How do I get the name of the active user via the command line in OS X?
How do I get the name of the active user via the command line in OS X?
12 Answers
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How to format a floating number to fixed width in Python
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So I understand that the 4f represents limiting the decimals to 4 (with trailing zeros), but what does the 10 mean? Does that mean this formatting won't work with integers greater than 9999999999 (ten 9's)? Just curious.
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How to fix “Incorrect string value” errors?
After noticing an application tended to discard random emails due to incorrect string value errors, I went though and switched many text columns to use the utf8 column charset and the default column collate ( utf8_general_ci ) so that it would accept them. This fixed most of the errors, and made ...
Can CSS detect the number of children an element has?
...elects based on the number of siblings.
Credit for this technique goes to André Luís (discovered) & Lea Verou (refined).
Don't you just love CSS3? ????
CodePen Example:
https://codepen.io/mattlubner-the-decoder/pen/ExaQZQR
Sources:
http://andr3.net/blog/post/142 (André Luís)
http://...
how perform grep operation on all files in a directory
Working with xenserver, and I want to perform a command on each file that is in a directory, grepping some stuff out of the output of the command and appending it in a file.
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How to delete a file via PHP?
...our filepath through realpath, then check if the returned path is writable and if so, unlink it.
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Static nested class in Java, why?
I was looking at the Java code for LinkedList and noticed that it made use of a static nested class, Entry .
14 Answers
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Why do I need to override the equals and hashCode methods in Java?
...n conjunction with all hash-based collections, including HashMap, HashSet, and Hashtable.
Let's try to understand it with an example of what would happen if we override equals() without overriding hashCode() and attempt to use a Map.
Say we have a class like this and that two objects of MyClass are...
Session variables in ASP.NET MVC
...lem is that I need this object to be accessed from any part of the website and I don't really know the best way to accomplish this. I know that one solution is to use session variables but I don't know how to use them in asp .net MVC. And where would I declare a session variable? Is there any other ...
Why do some claim that Java's implementation of generics is bad?
...gie - in .NET a List<byte> really is backed by a byte[] for example, and no boxing is required)
Syntax for calling generic methods sucks (IMO)
Syntax for constraints can get confusing
Wildcarding is generally confusing
Various restrictions due to the above - casting etc
Good:
Wildcarding a...