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CODE EXAMPLE FOR PYTHON

[_ for _ in range(n)]

"""Use of _ as a variable
It is to indicate throwaway variables, 
...i.e. variables that are not reused anywhere else (as they are...
        ...not logically important) but for syntax reasons you have to put

This saves space for variables that are actually reused...
...and provides a good mental model for essential and unessential parts...
...of your code

Of course, take this as a guideline. 
There are instances where naming those variables are better for readability...
...especially in group projects

Check out the source for more info!
"""

lst1 = [_ for _ in range(10)]
print(lst1)
# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Source by stackoverflow.com #
 
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