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There is a list, for example,
a=[1,2,3,4] I can use
a.append(some_value) to add element at the end of list, and
a.insert(exact_position, some_value) to insert element on any other position in list but not at the end as
a.insert(-1, 5) will return [1,2,3,5,4]. So how to add an element to the end of list using list.insert(position, value)?
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If we want to add an element at the end of a list, we should use append . It is faster and direct. If we want to add an element somewhere within a list, we should use insert . It is the only option for this.
Adding a string to a list inserts the string as a single element, and the element will be added to the list at the end. The list. append() will append it to the end of the list. You can refer to the below screenshot to see the output for add string to list python.
You'll have to pass the new ordinal position to insert using len in this case:
In [62]: a=[1,2,3,4] a.insert(len(a),5) a Out[62]: [1, 2, 3, 4, 5] list.insert with any index >= len(of_the_list) places the value at the end of list. It behaves like append
Python 3.7.4 >>>lst=[10,20,30] >>>lst.insert(len(lst), 101) >>>lst [10, 20, 30, 101] >>>lst.insert(len(lst)+50, 202) >>>lst [10, 20, 30, 101, 202] Time complexity, append O(1), insert O(n)
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