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What do helper and helper_method do?
...ods defined in the controller to make them available for the view. This is used for any method that you need to access from both controllers and helpers/views (standard helper methods are not available in controllers). e.g. common use case:
#application_controller.rb
def current_user
@current_use...
How to import and use different packages of the same name in Go language?
For example, I want to use both text/template and html/template in one source file.
But the code below throw errors.
2 Ans...
How to go to a specific file in Chrome Developer Tools?
I am developing a web application with a heavy front-end approach. By using Dojo and the AMD-way, I currently have testing screens which may easily load over a hundred different javascript files.
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How to uncompress a tar.gz in another directory
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You can use the option -C (or --directory if you prefer long options) to give the target directory of your choice in case you are using the Gnu version of tar. The directory should exist:
mkdir foo
tar -xzf bar.tar.gz -C foo
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Objective-C: Extract filename from path string
When I have NSString with /Users/user/Projects/thefile.ext I want to extract thefile with Objective-C methods.
3 Answ...
Emacs: print key binding for a command or list all key bindings
In Emacs (GNU 23.2, *nix), how can I:
2 Answers
2
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Convert NSNumber to int in Objective-C
I use [NSNumber numberWithInt:42] or @(42) to convert an int to NSNumber before adding it to an NSDictionary:
5 Answers...
Getting number of days in a month
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You want DateTime.DaysInMonth:
int days = DateTime.DaysInMonth(year, month);
Obviously it varies by year, as sometimes February has 28 days and sometimes 29. You could always pick a particular year (leap or not) if you want ...
How to run cron job every 2 hours
How can I write a Crontab that will run my /home/username/test.sh script every 2 hours?
5 Answers
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How to get the last N rows of a pandas DataFrame?
...... I did forget :o
– Mike Rapadas
Jun 30 at 22:11
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