How do I slice an array in Python?

How do I slice an array in Python?

In Python, you can slice an array using the syntax array[start:end]. This will return a new array from the start index to the end index, excluding the end index.

Can you give me an example of slicing an array?

Sure! If you have an array arr = [1, 2, 3, 4, 5], then arr[1:4] will return [2, 3, 4].

What if I want to slice with a step?

You can add a step parameter like this: array[start:end:step]. For example, arr[::2] will return every second element, resulting in [1, 3, 5].

Are there any common mistakes to avoid when slicing?

Yes! A common mistake is to forget that the end index is exclusive. Also, be careful with negative indices, which count from the end of the array.