Python Array Methods
Python lists (often used as arrays) come with many built-in methods that make it easy to manage, modify, and analyze data stored in them.
Below is an explanation of common array methods, along with clear examples for each.
Common Array Methods
append() – Add an Item to the End
Adds a single element at the end of the list.
clear() – Remove All Elements
Deletes all items from the list, making it empty.
copy() – Create a Shallow Copy
Returns a new list with the same elements.
count() – Count Occurrences of a Value
Returns how many times a value appears in the list.
extend() – Add Multiple Elements
Adds elements from another iterable to the end of the list.
index() – Find Position of an Element
Returns the index of the first occurrence of a value.
insert() – Add an Element at a Specific Position
Inserts an element at the given index.
pop() – Remove an Element by Index
Removes and returns the element at the given position.
remove() – Remove an Element by Value
Removes the first matching value from the list.
reverse() – Reverse the List Order
Reverses the elements of the list in place.
sort() – Sort the List
Sorts the list in ascending order by default.
Sorting in descending order:
Array Methods Summary
| Method | Purpose |
|---|---|
append()
|
Add item at the end |
clear()
|
Remove all elements |
copy()
|
Create a duplicate list |
count()
|
Count occurrences |
extend()
|
Add multiple items |
index()
|
Find element position |
insert()
|
Add item at specific index |
pop()
|
Remove item by index |
remove()
|
Remove item by value |
reverse()
|
Reverse list order |
sort()
|
Sort list elements |
