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How to flatten tree via LINQ?
...lt;T>> f
) => e.SelectMany(c => f(c).Flatten(f)).Concat(e);
Call this function like this:
IEnumerable<MyNode> tree = ....
var res = tree.Flatten(node => node.Elements);
If you would prefer flattening in pre-order rather than in post-order, switch around the sides of the Con...
String output: format or concat in C#?
...le with an existing IL rewriter such as PostSharp.
– Allon Guralnek
Sep 29 '11 at 15:24
31
String...
In JavaScript, does it make a difference if I call a function with parentheses?
I noticed a difference when calling a function with empty parentheses, or without any parentheses at all. However, I am not passing any arguments to the function so I wondered, what would be the difference between:
...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...ve the seconds into the day if you want
NSDate *today = [NSDate date];
// All intervals taken from Google
NSDate *yesterday = [today dateByAddingTimeInterval: -86400.0];
NSDate *thisWeek = [today dateByAddingTimeInterval: -604800.0];
NSDate *lastWeek = [today dateByAddingTimeInterval: -1209600.0]...
Effect of NOLOCK hint in SELECT statements
...l complete faster than a normal select.
2) Yes, a select with NOLOCK will allow other queries against the effected table to complete faster than a normal select.
Why would this be?
NOLOCK typically (depending on your DB engine) means give me your data, and I don't care what state it is in, and d...
Bash: Strip trailing linebreak from output
...
If your expected output is a single line, you can simply remove all newline characters from the output. It would not be uncommon to pipe to the 'tr' utility, or to Perl if preferred:
wc -l < log.txt | tr -d '\n'
wc -l < log.txt | perl -pe 'chomp'
You can also use command substit...
Changing the case of a string in Eclipse
... You can use the hot key CTRL+SHIFT+L to bring up the popup that contains all the available hot-keys
– Ken Chan
Oct 4 '12 at 18:57
...
Use tab to indent in textarea
...
I don't usually copy code straight from Stackoverflow and paste it into my project and have it work, but when I do, it was this code. Thanks for this.
– Flat Cat
Dec 15 '14 at 14:58
...
Get Output From the logging Module in IPython Notebook
.... The functions debug(), info(), warning(), error() and
critical() will call basicConfig() automatically if no handlers are
defined for the root logger.
This function does nothing if the root logger already has handlers
configured for it.
It seems like ipython notebook call basicConfig ...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...
A little late here but generally I've seen this problem occur when you get a 'tablespace full' error when running in a 'innodb_file_per_table' mode. Without going into too much detail (more here), the database server's tablespace is defined by the inno...