Meaning of list[-1] in Python - Stack Overflow I have a piece of code here that is supposed to return the least common element in a list of elements, ordered by commonality: def getSingle(arr): from collections import Counter c = Counte
python - if else in a list comprehension - Stack Overflow Since a list comprehension creates a list, it shouldn't be used if creating a list is not the goal; it shouldn't be used simply to write a one-line for-loop; so refrain from writing [print(x) for x in range(5)] for example
How to initialize List lt;String gt; object in Java? - Stack Overflow List is an Interface, you cannot instantiate an Interface, because interface is a convention, what methods should have your classes In order to instantiate, you need some realizations (implementations) of that interface Try the below code with very popular implementations of List interface: List<String> supplierNames = new ArrayList<String>(); or List<String> supplierNames = new LinkedList
Where clause in Linq in List c# - Stack Overflow Just put the Where before the Select: var list=testList Where(f=>f Family=="") Select(n=>n Name); In Linq you need to apply the filter before projecting (unless the filter applies to the results of the projection rather than the original collection)
python - How do I get the last element of a list? - Stack Overflow Downvoted because I feel the core of this answer is incorrect Getting a list when you want an element only postpones the inevitable "list index out of range" - and that's what should happen when attempting to get an element from an empty list
Get a list from Pandas DataFrame column headers - Stack Overflow I want to get a list of the column headers from a Pandas DataFrame The DataFrame will come from user input, so I won't know how many columns there will be or what they will be called For example