# List Methods

Just like strings, you can check for methods for lists as well using `dir` and `help`. Some important methods are like `append`, `extend` and `sort`.

• `append` adds a new element to the list,
• `extend` takes a list as an argument and appends all of the elements,
• `sort` arranges the elements of the list from small to large.

Understand the code and make use of notebook to figure out the results,

``````a = [23,12,32,1,2,34,56]
a.append(12)
print(a[len(a)-2])
``````

Enter the number printed

``````a.extend(a)
``````

Enter the sum of all elements within `a`

``````a.sort()
print(a[2] + a[7])
``````

Enter the number printed

Some other functions are,

• `sum()` only works when the list elements are numbers to calculate the sum of all elements
• other functions (`max()`, `len()`, etc.) work with lists of strings and other types that can be comparable.

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