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Clojure: cons (seq) vs. conj (list)
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Incidentally, as a special case, (cons foo nil) returns a singleton PersistentList (and likewise for conj).
– Michał Marczyk
Jun 9 '10 at 21:30
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Map function in MATLAB?
... answered Apr 26 '12 at 10:39
Foo BaraFoo Bara
1111 bronze badge
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Remove large .pack file created by git
...ME are indeed just file/folder names. They're not paths, so something like foo/bar.jpg will not work! Instead all files/folders with the specified name will be removed from repo history, no matter which path or branch they existed.
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Best practices for in-app database migration for Sqlite
...f (version < 1) {
[[self database] executeUpdate:@"CREATE TABLE foo (...)"];
}
[self setDatabaseSchemaVersion:DatabaseSchemaVersionLatest];
NSLog(@"Database schema version after migration is %d", [self databaseSchemaVersion]);
}
And here's the root view controller code that...
git remote add with other SSH port
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url = ssh://evanc@www.foo.com:11720/aaa/bbb/ccc ...
New to unit testing, how to write great tests? [closed]
...the tests must too.
Testing should not be literally testing that function foo invoked function bar 3 times. That is wrong. Check if the result and side-effects are correct, not the inner mechanics.
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What are the reasons why Map.get(Object key) is not (fully) generic
... I have never once wanted to check membership in a Set<? extends Foo>. I have very frequently changed the key type of a map and then been frustrated that the compiler could not find all the places where the code needed updating. I am really not convinced that this is the correct trade...
When and how should I use a ThreadLocal variable?
...ve each thread its own instance of the object.
For example:
public class Foo
{
// SimpleDateFormat is not thread-safe, so give one to each thread
private static final ThreadLocal<SimpleDateFormat> formatter = new ThreadLocal<SimpleDateFormat>(){
@Override
protec...
How do I prevent a Gateway Timeout with FastCGI on Nginx
...ing purposes and might be dangerous in a production environment.
upstream foo_server {
server 127.0.0.1:3000 fail_timeout=0;
}
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Pandas: Looking up the list of sheets in an excel file
...e the ExcelFile class (and the sheet_names attribute):
xl = pd.ExcelFile('foo.xls')
xl.sheet_names # see all sheet names
xl.parse(sheet_name) # read a specific sheet to DataFrame
see docs for parse for more options...
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