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Comparing two dataframes and getting the differences
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Founder a simple solution here:
https://stackoverflow.com/a/47132808/9656339
pd.concat([df1, df2]).loc[df1.index.symmetric_difference(df2.index)]
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Jackson Vs. Gson [closed]
...a case insensitive element from Json?
Case sensitivity support in Jackson
https://gist.github.com/electrum/1260489
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Is there any good dynamic SQL builder library in Java? [closed]
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You can use the following library:
https://github.com/pnowy/NativeCriteria
The library is built on the top of the Hibernate "create sql query" so it supports all databases supported by Hibernate (the Hibernate session and JPA providers are supported). The bui...
No submodule mapping found in .gitmodule for a path that's not a submodule
... it worked for me after having edited the .gitmodules file to change https:// links by git:// links
– Diwann
Jun 18 '13 at 12:24
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Best practices to handle routes for STI subclasses in rails
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I suggest you take a look at : https://stackoverflow.com/a/605172/445908, using this method will enable you to use "form_for".
ActiveRecord::Base#becomes
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Django filter versus get for single object?
... the party, but with Django 1.6 there is the first() method on querysets.
https://docs.djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.first
Returns the first object matched by the queryset, or None if there is no matching object. If the QuerySet has no ordering...
How to get cumulative sum
...UNBOUNDED PRECEDING AND CURRENT ROW for window frame ("General Remarks" at https://msdn.microsoft.com/en-us/library/ms189461.aspx)
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Why do loggers recommend using a logger per class?
... Logger theLogger = LogManager.GetLogger(t.FullName);
//https://github.com/NLog/NLog/wiki/Log-levels
string[] levels = { "Off", "Trace", "Debug", "Info", "Warn", "Error", "Fatal" };
int level = Math.Min(levels.Length, severity);
theLogger.Log(Lo...
How can I validate a string to only allow alphanumeric characters in it?
...r regex).
Blending various answers and comments here, and discussion from https://stackoverflow.com/a/9975693/292060, this tests for letter or digit, avoiding other language letters, and avoiding other numbers such as fraction characters.
if (!String.IsNullOrEmpty(testString)
&& testSt...
How do you access a website running on localhost from iPhone browser
...eb apps, which usually have service workers, since service workers require https, and that requires certificates. With Android, it forwards the ports so that you can still use localhost and so don't need the hassle of getting certificates.
– Max Waterman
Oct 16...