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How do I programmatically change file permissions?
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selecting this one as I don't have the ability to use Marty Lamb's answer.
– Roy Rico
Mar 20 '09 at 0:44
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Filter dataframe rows if value in column is in a set list of values [duplicate]
...id 7
9 1980-01-10 9 Jones 4
There are multiple ways of selecting or slicing the data.
Using .isin
The most obvious is the .isin feature. You can create a mask that gives you a series of True/False statements, which can be applied to a dataframe like this:
mask = df['STK_ID'].isin...
FontAwesome icons not showing. Why?
...your browsers cache. (On Chrome do a looong click on the reload button and select Hard Cache Reset)
Assure that the <span> or <i> element you use, uses the FontAwesome font family. For example, it must not just
<i class="fa-pencil" title="Edit"></i>
but
<i class="fa fa...
CSS Box Shadow - Top and Bottom Only [duplicate]
...an solution. should be marked as the right one IMHO. (although the current selected answer mentions this).
– yogee
Jun 4 '13 at 7:42
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Mercurial undo last commit
...rollback is accomplished in the commit dialog. Open the commit dialog and select "Undo".
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How do I create a new Swift project without using Storyboards?
... new project in XCode 6 doesn't allow to disable Storyboards. You can only select Swift or Objective-C and to use or not Core Data.
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How to open a local disk file with JavaScript?
...leReader facility does allow you to process local files, but these MUST be selected by the user, you cannot go rooting about the users disk looking for files.
I currently use this with development versions of Chrome (6.x). I don't know what other browsers support it.
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psql: FATAL: database “” does not exist
...euser --interactive
When prompted for role name, enter linux username, and select Yes to superuser question.
Still logged in as postgres user, create a database: createdb <username_from_step_3>
Confirm error(s) are gone by entering: psql at the command prompt.
Output should show psql (x.x.x) T...
Memcached vs. Redis? [closed]
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Use Redis if
You require selectively deleting/expiring items in the cache. (You need this)
You require the ability to query keys of a particular type. eq. 'blog1:posts:*', 'blog2:categories:xyz:posts:*'. oh yeah! this is very important. Use this to i...
File Upload without Form
... this tutorial, here a very basic way to do that:
$('your_trigger_element_selector').on('click', function(){
var data = new FormData();
data.append('input_file_name', $('your_file_input_selector').prop('files')[0]);
// append other variables to data if you want: data.append('field_n...