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In Python, how do I index a list with another list?
... I came up with a Flexlist class that allows for flexible indexing, either by integer, slice or index-list:
class Flexlist(list):
def __getitem__(self, keys):
if isinstance(keys, (int, slice)): return list.__getitem__(self, keys)
return [self[k] for k in keys]
Which, for your ...
How do I make a column unique and index it in a Ruby on Rails migration?
I would like to make a column unique in Ruby on Rails migration script. What is the best way to do it? Also is there a way to index a column in a table?
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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
....
Type sudo chown -R <USERNAME> /data/db, replace <USERNAME> by your username.
You can find your username by typing whoami.
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Regular Expression to get a string between parentheses in Javascript
... Running that jsperf today in Chrome 59.0.3071, the regex was faster by 8%
– Alex McMillan
Jul 27 '17 at 22:50
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Full Screen Theme for AppCompat
...en you use Theme.AppCompat in your application you can use FullScreenTheme by adding the code below to styles.
<style name="Theme.AppCompat.Light.NoActionBar.FullScreen" parent="@style/Theme.AppCompat.Light.NoActionBar">
<item name="android:windowNoTitle">true</item>
<i...
Override devise registrations controller
...his instance.
Otherwise, I think you can just create your own controller, by generating something like this:
# app/controllers/registrations_controller.rb
class RegistrationsController < Devise::RegistrationsController
def new
super
end
def create
# add custom create logic here
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What's “requestCode” used for on PendingIntent?
...cumentation for PendingIntent and AlarmManager are total sh!t - made worse by the fact that it's not possible to list alarms programmatically.
– Someone Somewhere
Aug 3 '15 at 19:27
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How to get duplicate items from a list using LINQ? [duplicate]
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var duplicates = lst.GroupBy(s => s)
.SelectMany(grp => grp.Skip(1));
Note that this will return all duplicates, so if you only want to know which items are duplicated in the source list, you could apply Distinct to the resulting sequence ...
Single TextView with multiple colored text
...h multiple colors without HTML as:
TextView textView = (TextView) findViewById(R.id.mytextview01);
Spannable word = new SpannableString("Your message");
word.setSpan(new ForegroundColorSpan(Color.BLUE), 0, word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
textView.setText(word);
Spannab...
How do you round to 1 decimal place in Javascript?
... returns a string when you maybe want a number.
– Cobby
Sep 14 '12 at 5:25
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