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How can I check if a string is null or empty in PowerShell?
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I agree with this solution better from a scripting standpoint. As always, Keith Hill has the correct solution! Thanks.
– Vippy
May 29 '15 at 17:27
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How to properly match varargs in Mockito
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Adapting the answer from @topchef,
Mockito.when(a.b(Mockito.anyInt(), Mockito.anyInt(), Mockito.any())).thenReturn(b);
Per the java docs for Mockito 2.23.4, Mockito.any() "Matches anything, including nulls and varargs."
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How to create a string with format?
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This method is coming from NSString in Foundation framework. So you have to import Foundation to make this to work correctly. Otherwise the expression will call String.init<T>(T) , and it will produce something like "(\"%@%x %x\", 10)" inste...
What exactly happens when I set LoadUserProfile of IIS pool?
...UserProfile=true in IIS and change the default temp folder %TEMP% location from C:\Users\C:\Users\AccountName\AppData\Local\Temp to somewhere else? example "D:\AppTempData"
– Murali Murugesan
Jul 18 '16 at 10:18
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LINQ, Where() vs FindAll()
...y be used on List<T> instances (or instances of classes that inherit from it, of course).
Additionally, they differ in actual purpose. Where returns an instance of IEnumerable that is executed on-demand when the object is enumerated. FindAll returns a new List<T> that contains the reque...
How to scroll HTML page to given anchor?
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Note that scrollIntoView suffers from the same problem scrollto(some px location) does - if the location of the element changes as you scroll, you will scroll to the wrong position. This can easily happen if you, for example, have unknown-dimension images lo...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...sions) checks for missing values in both numeric and string/object arrays. From the documentation, it checks for:
NaN in numeric arrays, None/NaN in object arrays
Quick example:
import pandas as pd
import numpy as np
s = pd.Series(['apple', np.nan, 'banana'])
pd.isnull(s)
Out[9]:
0 False
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When to use references vs. pointers
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From C++ FAQ Lite -
Use references when you can, and pointers when you have to.
References are usually preferred over pointers whenever you don't need
"reseating". This usually means that references are most usefu...
How are feature_importances in RandomForestClassifier determined?
... the Permutation Importance metric and can be used to calculate the values from an instance of a scikit-learn random forest class:
https://github.com/pjh2011/rf_perm_feat_import
Edit: This works for Python 2.7, not 3
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Using Case/Switch and GetType to determine the object [duplicate]
...very early (unless you throw an exception that will stop the other methods from calling, but still very bad usage)
– bigworld12
Nov 21 '16 at 15:25