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How to print color in console using System.out.println?
...or in console? I want to show data in colors when the processor sends data and in different colors when it receives data.
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puts vs logger in rails rake tasks
In a rake task if I use puts command then I see the output on console. However I will not see that message in log file when app is deployed on production.
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Iterate over model instance field names and values in template
... instance's field values, along with their names. Think of it as just a standard output of the values of that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column.
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How to specify the private SSH-key to use when executing shell command on Git?
... want to specify a private SSH-key to use when executing a shell (git) command from the local computer.
29 Answers
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Staging Deleted files
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matching files. Also a leading directory name (e.g. dir to add dir/file1 and dir/file2) can be given to update the index to match the current state of the directory as a whole (e.g. specifying dir will record not just a file dir/file1 modified in the working tree, a file dir/file2 added to the wor...
Correct way to populate an Array with a Range in Ruby
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What if the array is already created and you want to add a range to it: I have order = 1. Then order << (2.25).to_a. But this creates another array inside the array, I simply want the range from 2 to 25. Yet if I try order << (2.25) I get the error c...
How to change to an older version of Node.js
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One way is to use NVM, the Node Version Manager.
Use following command to get nvm
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash
You can find it at https://github.com/creationix/nvm
It allows you to easily install and manage multiple versions of node...
What does the ??!??! operator do in C?
...?! is a trigraph that translates to |. So it says:
!ErrorHasOccured() || HandleError();
which, due to short circuiting, is equivalent to:
if (ErrorHasOccured())
HandleError();
Guru of the Week (deals with C++ but relevant here), where I picked this up.
Possible origin of trigraphs or as @...
Are there any style options for the HTML5 Date picker?
...picker-indicator
So if you thought the date input could use more spacing and a ridiculous color scheme you could add the following:
::-webkit-datetime-edit { padding: 1em; }
::-webkit-datetime-edit-fields-wrapper { background: silver; }
::-webkit-datetime-edit-text { color: red; padding: 0 ...
PostgreSQL error: Fatal: role “username” does not exist
...en done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is to use the operating system user matching the database role of the same name to be granted access via ident authentication. pos...