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How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...er = nil;
// if you care about the scope save off the index to be used by the serchFetchedResultsController
//self.savedScopeButtonIndex = scope;
}
#pragma mark -
#pragma mark Search Bar
- (void)searchDisplayController:(UISearchDisplayController *)controller willUnloadSearchResultsTableVi...
Razor comment syntax
... new @* * syntax. So now there are three ways to comment. Not just the one by JarretV.
– Buildstarted
Nov 15 '10 at 17:26
...
Delete all Duplicate Rows except for One in MySQL? [duplicate]
...t could have duplicates repeated more than once you will also want a GROUP BY n1.id clause.
– usumoio
Oct 19 '13 at 0:00
...
Recursively counting files in a Linux directory
...and's standard input.
wc (short for word count) counts newlines, words and bytes on its input (docs).
-l to count just newlines.
Notes:
Replace DIR_NAME with . to execute the command in the current folder.
You can also remove the -type f to include directories (and symlinks) in the count.
It's ...
What is the order of precedence for CSS?
...
What we are looking at here is called specificity as stated by Mozilla:
Specificity is the means by which browsers decide which CSS property
values are the most relevant to an element and, therefore, will be
applied. Specificity is based on the matching rules which are compose...
Difference between TCP and UDP?
...w control or error correction. The data sent over the Internet is affected by collisions, and errors will be present. Remember that UDP is only concerned with speed. This is the main reason why streaming media is not high quality.
1) TCP is connection oriented and reliable where as UDP is connectio...
How to create a library project in Android Studio and an application project that uses the library p
... You can reference modules that are external to your project’s directory by adding a project statement in your settings.gradle file and by setting the projectDir property on the ProjectDescriptor object that’s returned by that project statement:
The code one has to put in settings.gradle:
in...
An efficient way to transpose a file in Bash
...$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl file >/dev/null
real 0m0.480s
user 0m0.442s
sys 0m0.026s
$ time awk -f ...
Where is nodejs log file?
...
There is no log file. Each node.js "app" is a separate entity. By default it will log errors to STDERR and output to STDOUT. You can change that when you run it from your shell to log to a file instead.
node my_app.js > my_app_log.log 2> my_app_err.log
Alternatively (recommended...
How can you profile a Python script?
...48.py
And I get this:
1007 function calls in 0.061 CPU seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 0.061 0.061 <string>:1(<module>)
1000 0.051 0.000 0.051 0.000 euler048.py:2(<lam...