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Converting newline formatting from Mac to Windows
... OSX uses older version of sed. I use Homebrew for OSX, and installed gnu-sed. You use with the "gsed" command instead of "sed". That works.
– John
Nov 11 '13 at 23:01
...
How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
...: <!-- language: c# --> public static string GetColumnName(int index) // zero-based { const byte BASE = 'Z' - 'A' + 1; string name = String.Empty; do { name = Convert.ToChar('A' + index % BASE) + name; index = index / BASE - 1; } while (index >= 0); return name;...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
... NSString *savedSearchTerm_;
NSInteger savedScopeButtonIndex_;
BOOL searchWasActive_;
}
@property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
@property (nonatomic, retain, readonly) NSFetchedResultsController *fetchedResultsController;
@prope...
What are the differences between segment trees, interval trees, binary indexed trees and range trees
What are differences between segment trees, interval trees, binary indexed trees and range trees in terms of:
2 Answers
...
Implications of foldr vs. foldl (or foldl')
...
@Desty because it produces new part of its overall result on each step -- unlike foldl, which collects its overall result and produces it only after all the work is finished and there are no more steps to perform. So e.g. foldl (flip (:)) [] [1..3] == [3,2,1], so scanl (f...
What is an 'endpoint' in Flask?
... the URL, you can use url_for(). Assume the following
@app.route('/')
def index():
print url_for('give_greeting', name='Mark') # This will print '/greeting/Mark'
@app.route('/greeting/<name>')
def give_greeting(name):
return 'Hello, {0}!'.format(name)
This is advantageous, as now w...
Can I use CASE statement in a JOIN condition?
...N portion of the clause. You could use it thusly:
SELECT *
FROM sys.indexes i
JOIN sys.partitions p
ON i.index_id = p.index_id
JOIN sys.allocation_units a
ON CASE
WHEN a.type IN (1, 3) AND a.container_id = p.hobt_id THEN 1
WHEN a.type IN (2)...
Looping through a hash, or using an array in PowerShell
...
Here is another quick way, just using the key as an index into the hash table to get the value:
$hash = @{
'a' = 1;
'b' = 2;
'c' = 3
};
foreach($key in $hash.keys) {
Write-Host ("Key = " + $key + " and Value = " + $hash[$key]);
}
...
How to shift a column in Pandas DataFrame
... The result is missing ##5. Is there an easy way in pandas to extend the index when using shift?
– Waylon Walker
May 19 '17 at 15:54
...
Creating a new empty branch for a new project
...uld be used:
git symbolic-ref HEAD refs/heads/<newbranch>
rm .git/index
git clean -fdx
After doing some work:
git add -A
git commit -m <message>
git push origin <newbranch>
share
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