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Convert Python dict into a dataframe
..., is since calling the DataFrame constructor with scalar values (where it expects values to be a list/dict/... i.e. have multiple columns):
pd.DataFrame(d)
ValueError: If using all scalar values, you must must pass an index
You could take the items from the dictionary (i.e. the key-value pairs):
...
How to shorten my conditional statements
...esn't have the Array#includes method, you can use this polyfill.
Short explanation of the ~ tilde shortcut:
Update: Since we now have the includes method, there's no point in using the ~ hack anymore. Just keeping this here for people that are interested in knowing how it works and/or have en...
How to read a file line-by-line into a list?
... remove whitespace characters like `\n` at the end of each line
content = [x.strip() for x in content]
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Sorting a list using Lambda/Linq to objects
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It often happened to me to write complex comparison operators, involving multiple comparison criteria and a failsafe GUID comparison in the end to ensure antisymmetry. Would you use a lambda expression for a complex comparison like that? If not, does this mean tha...
How to simulate a touch event in Android?
How to simulate a touch event with Android while giving the X and Y coordinates manually?
7 Answers
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What is the difference between == and Equals() for primitives in C#?
...ves types override the base object.Equals(object) and return true if the boxed object is of the same type and value. (Note that it will also work for nullable types; non-null nullable types always box to an instance of the underlying type.)
Since newAge is a short, its Equals(object) method only ret...
How can I wrap text in a label using WPF?
I have a TextBox and a Label. After clicking a button, I execute the following code:
10 Answers
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C++11 rvalues and move semantics confusion (return statement)
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First example
std::vector<int> return_vector(void)
{
std::vector<int> tmp {1,2,3,4,5};
return tmp;
}
std::vector<int> &&rval_ref = return_vector();
The first example returns a temporary which is c...
How to inherit constructors?
...s can then mask out some of them using constant values like null and only expose the necessary ones through their constructors.
Update
In C#4 you could specify default parameter values and use named parameters to make a single constructor support multiple argument configurations rather than having o...
Batch Renaming of Files in a Directory
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Such renaming is quite easy, for example with os and glob modules:
import glob, os
def rename(dir, pattern, titlePattern):
for pathAndFilename in glob.iglob(os.path.join(dir, pattern)):
title, ext = os.path.splitext(os.path.basename(pathAndFilen...