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- List of zeros in python - Stack Overflow
How can I create a list which contains only zeros? I want to be able to create a zeros list for each int in range(10) For example, if the int in the range was 4 I will get: [0,0,0,0] and for 7:
- slice - How slicing in Python works - Stack Overflow
The first way works for a list or a string; the second way only works for a list, because slice assignment isn't allowed for strings Other than that I think the only difference is speed: it looks like it's a little faster the first way Try it yourself with timeit timeit () or preferably timeit repeat ()
- 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
- What is the syntax to insert one list into another list in python?
What is the syntax to insert one list into another list in python? [duplicate] Asked 14 years, 10 months ago Modified 6 years, 1 month ago Viewed 349k times
- 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)
- How to cast List lt;Object gt; to List lt;MyClass gt; - Stack Overflow
You can't directly cast List to List because Java generics are invariant This means that List is not the same as List, even though Customer is a subtype of Object
- How can I find the index for a given item in a list?
Caveats Linear time-complexity in list length An index call checks every element of the list in order, until it finds a match If the list is long, and if there is no guarantee that the value will be near the beginning, this can slow down the code This problem can only be completely avoided by using a different data structure
- How to concatenate (join) items in a list to a single string
For handling a few strings in separate variables, see How do I append one string to another in Python? For the opposite process - creating a list from a string - see How do I split a string into a list of characters? or How do I split a string into a list of words? as appropriate
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