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Why do some claim that Java's implementation of generics is bad?
... to be
Can't be used for value types (this is a biggie - 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...
How do you change a repository description on GitHub?
...n in feature preview, meta-information about the repository can be changed by clicking on a cog icon in the right-hand side menu's "About" section:
Upon doing so, a popup will appear where the description, website, topics, and homepage settings can be configured:
...
How to remove folders with a certain name
... target directory is empty, use find, filter with only directories, filter by name, execute rmdir:
find . -type d -name a -exec rmdir {} \;
If you want to recursively delete its contents, replace -exec rmdir {} \; by -delete or -prune -exec rm -rf {} \;. Other answers include details about these ...
How to search for occurrences of more than one space between words in a line
...t it will also match newlines on Windows files (where newlines are denoted by CRLF or \r\n which is matched by \s{2}.
If you also want to find multiple tabs and spaces, use [ \t]{2,}.
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import module from string variable
... for nested matplotlib (MPL) library, which differs from MPL own provided, by interested submodule packages. I'm writing Python script which I hope will automate document generation from future MPL releases.
I selected interested submodules/packages and want to list their main classes from which I...
What exactly can cause an “HIERARCHY_REQUEST_ERR: DOM Exception 3”-Error?
...node)
The browser thinks the HTML you are attempting to append is XML (fix by adding <!doctype html> to your injected HTML, or specifying the content type when fetching via XHR)
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The object cannot be deleted because it was not found in the ObjectStateManager
...
It means that entity is not attached (it was not loaded by the same context instance). Try this:
protected MyEntities sqlEntities;
public virtual void Delete(TEntity entity)
{
sqlEntities.Attach(entity);
sqlEntities.DeleteObject(entity);
sqlEntities.SaveChanges();
}
...
Are braces necessary in one-line statements in JavaScript?
... a block. And to never use multiple statements on a single line (separated by semicolons). I find this easy to read and clear and never have scoping issues on 'if' statements. As a result, using brackets on a single if condition statement would require 3 lines. Like this:
if (condition) {
state...
How to convert a string with comma-delimited items to a list in Python?
...
In case you want to split by spaces, you can just use .split():
a = 'mary had a little lamb'
z = a.split()
print z
Output:
['mary', 'had', 'a', 'little', 'lamb']
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How do you search for files containing DOS line endings (CRLF) with grep on Linux?
...ion
-I ignore binary files
-U prevents grep from stripping CR characters. By default it does this it if it decides it's a text file.
-r read all files under each directory recursively.
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