大约有 22,535 项符合查询结果（耗时：0.0358秒） [XML]
Android list view inside a scroll view
...="utf-8"?>
<androidx.core.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.Linea...
Using psql how do I list extensions installed in a database?
...
In psql that would be
\dx
See the manual for details: http://www.postgresql.org/docs/current/static/app-psql.html
Doing it in plain SQL it would be a select on pg_extension:
SELECT *
FROM pg_extension
http://www.postgresql.org/docs/current/static/catalog-pg-extension.html
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Unique Constraint in Entity Framework Code First
... of version 4.3 you can use the new migrations mechanism to achieve it:
http://msdn.microsoft.com/en-us/library/hh770484(v=vs.103).aspx
http://blogs.msdn.com/b/adonet/archive/2012/02/09/ef-4-3-code-based-migrations-walkthrough.aspx
Basically you need to insert a call like this in one of your mi...
Should I embed images as data/base64 in CSS or HTML
...their binary equivalent. (However, this overhead is reduced to 2-3% if the HTTP server compresses the response using gzip)
Data URIs make it more difficult for security software to filter content.
share
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Convert SVG to PNG in Python
...cairosvg:
from cairosvg import svg2png
svg_code = """
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
<circle cx="12" cy="12" r="10"/>
<l...
Pandas - Get first row value of a given column
... a copy of a slice from a DataFrame
See the caveats in the documentation: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-view-versus-copy
self._setitem_with_indexer(indexer, value)
In [26]: df
Out[26]:
foo bar
0 A 99 <-- assignment succeeded
2 B 100
1 C 100
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Accessing the logged-in user in a template
I'm using FOSuserbundle to get started with User registration https://github.com/FriendsOfSymfony/FOSUserBundle
3 Answers
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Design Patterns web based applications [closed]
...his is the simplest to implement. The (Business) Model works directly with HttpServletRequest and HttpServletResponse objects. You have to gather, convert and validate the request parameters (mostly) yourself. The View can be represented by plain vanilla HTML/CSS/JS and it does not maintain state ac...
Difference between jQuery parent(), parents() and closest() functions
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from http://api.jquery.com/closest/
The .parents() and .closest() methods are similar in that they both
traverse up the DOM tree. The differences between the two, though
subtle, are significant:
.closest()
Begins with the curren...
How to install a private NPM module without my own registry?
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FYI if you are serving your git up via http you'll need to npm i git+http://all/the/things.git even though git clone http://all/the/things.git works just fine
– slf
May 30 '13 at 19:09
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