Dec 3, 2017 · From the Python3 doc: list.insert(i, x) Insert an item at a given position. The first argument is the index of the element before which to insert, so a.insert (0, x) inserts at the …

Here's the timeit comparison of all the answers with list of 1000 elements on Python 3.9.1 and Python 2.7.16. Answers are listed in the order of performance for both the Python versions.

Sep 17, 2016 · In JavaScript, I can use splice to insert an array of multiple elements in to an array: myArray.splice(insertIndex, removeNElements, ...insertThese). But I can't seem to find …

To insert at random position in list you could use a.insert(random.randint(0, len(a)), v) where v is the value to insert. Note with empty list, len (a)=0 so will insert at position 0 as expected. This …

Sep 20, 2010 · What is the syntax to insert one list into another list in python? [duplicate] Asked 15 years, 4 months ago Modified 6 years, 7 months ago Viewed 351k times

Oct 7, 2020 · Write a function insert_item_end (data, item) that takes a list data, and item as a parameter and returns a new list that contains item at the end of the data using the insert …

Oct 15, 2011 · I have written basic python snippets to first insert values in a list and then reverse them. I found that there was a huge difference of speed of execution between insert and …

Sep 17, 2021 · Is there any function in Python that I can use to insert a value in a certain position of a string? Something like this: "3655879ACB6" then in position 4 add "-" to become "3655 …

Nov 6, 2011 · 3 Starting from Python 3.10: When you want to insert an element into a list of tuples where the first element is comparable and the second is not you can use the key parameter of …

Aug 3, 2013 · The list.insert function will insert before the specified index. Since the list is not that long anyways in your example, it goes on the end. Why not just use list.append if you want to …