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What is a Java ClassLoader?
... a general class path as well as your application classes.
Since there is more than one class loader, they are represented in a tree whose root is the bootstrap class loader. Each class loader has a reference to its parent class loader. When a class loader is asked to load a class, it consults its ...
Change the name of the :id parameter in Routing resources for Rails
...he effect you describe in Rails 3 in routes.rb. It will just involve a bit more work than the to_param method. You can still define custom parameters in routes defined using scope and match (or it's cousins get, put, post, and delete). You simply write in the parameter name you want in the matcher:
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How to output a multiline string in Bash?
...n this page, I created a mixed approach, which I consider the simplest and more flexible one. What do you think?
First, I define the usage in a variable, which allows me to reuse it in different contexts. The format is very simple, almost WYSIWYG, without the need to add any control characters. Thi...
Checkout old commit and make it a new commit [duplicate]
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this works but I feel like there should be a more elegant way to do this.
– Gabriel Southern
Apr 10 '12 at 22:16
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UITableView Setting some cells as “unselectable”
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When correctly use Task.Run and when just async-await
...work on a UI thread, collected on my blog:
Don't block the UI thread for more than 50ms at a time.
You can schedule ~100 continuations on the UI thread per second; 1000 is too much.
There are two techniques you should use:
1) Use ConfigureAwait(false) when you can.
E.g., await MyAsync().Config...
How do I match any character across multiple lines in a regular expression?
... space and non-space] instead of the period matcher. See other answers for more info.
– Allen
May 9 '13 at 15:37
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How to test if a string is JSON or not?
...ate that tests if the JSON represents an object you'll need to do a little more.
– Michael Lang
Nov 18 '15 at 23:15
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How could the UNIX sort command sort a very large file?
...x Sort uses an External R-Way merge sorting algorithm. The link goes into more details, but in essence it divides the input up into smaller portions (that fit into memory) and then merges each portion together at the end.
s...
How to toggle a value in Python
... A else A
>>> x
[4, 5, 6]
Solution using itertools
If you have more than two values, the itertools.cycle() function provides a generic fast way to toggle between successive values:
>>> import itertools
>>> toggle = itertools.cycle(['red', 'green', 'blue']).next
>&gt...