Arrays are used to store multiple values in one single variable: cars = ["Ford", "Volvo", "BMW"]
Access the Elements of an Array You refer to an array element by referring to the index number. x = cars[0]
cars[0] = "Toyota"
The Length of an Array Use the len() method to return the length of an array (the number of elements in an array). x = len(cars)
Looping Array Elements You can use the for in loop to loop through all the elements of an array. for x in cars:
print(x)
Adding Array Elements You can use the append() method to add an element to an array. cars.append("Honda")
Removing Array Elements You can use the pop() method to remove an element from the array. cars.pop(1)
cars.remove("Volvo")
Array Methods Python has a set of built-in methods that you can use on lists/arrays. Method | Description | append() | Adds an element at the end of the list | clear() | Removes all the elements from the list | copy() | Returns a copy of the list | count() | Returns the number of elements with the specified value | extend() | Add the elements of a list (or any iterable), to the end of the current list | index() | Returns the index of the first element with the specified value | insert() | Adds an element at the specified position | pop() | Removes the element at the specified position | remove() | Removes the first item with the specified value | reverse() | Reverses the order of the list | sort() | Sorts the list |
Tags: Python Python Arrays
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