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Checking if a string is empty or null in Java [duplicate]
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@HonzaKalfus "Calling isEmpty() returns true for string containing whitespace character" - That is not true! " ".isEmpty() returns false
– MestreLion
Sep 1 '17 at 1:59
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Converting strings to floats in a DataFrame
...newer version of pandas (0.17 and up), you can use to_numeric function. It allows you to convert the whole dataframe or just individual columns. It also gives you an ability to select how to treat stuff that can't be converted to numeric values:
import pandas as pd
s = pd.Series(['1.0', '2', -3])
p...
JavaScript chop/slice/trim off last character in string
...viously using the substring version. Thanks!
– Matt Ball
Apr 13 '10 at 14:09
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forgive me if I'm...
Parsing JSON array into java.util.List with Gson
... Type can be found in what package?
– Abel Callejo
Aug 31 '13 at 15:18
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Multiple arguments to function called by pthread_create()?
I need to pass multiple arguments to a function that I would like to call on a separate thread. I've read that the typical way to do this is to define a struct, pass the function a pointer to that, and dereference it for the arguments. However, I am unable to get this to work:
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Programmatically update widget from activity/service/receiver
...sed it to start failing. This method (of directly updating the fields manually) works better. For my purposes, at least.
– durbnpoisn
Apr 26 '14 at 11:35
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How can I format my grep output to show line numbers at the end of the line, and also the hit count?
... sometimes man page can take many pages. And this is hard to read all of them
– Eugen Konkov
May 22 '18 at 13:44
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ImportError: No module named requests
...quests is not a built in module (does not come with the default python installation), so you will have to install it:
OSX/Linux
Use $ sudo pip install requests (or pip3 install requests for python3) if you have pip installed. If pip is installed but not in your path you can use python -m pip ins...
Get the Last Inserted Id Using Laravel Eloquent
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Actually you can do it right in the insert $id = DB::table('someTable')->insertGetId( ['field' => Input['data']);
– Casey
May 15 '14 at 15:05
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How to download a file from server using SSH? [closed]
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This actually works with .ssh/config, whereas scp doesn't seem to follow the ssh configuration
– user1115652
Feb 23 '17 at 0:50
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