How do I slice arrays in Python, JavaScript, and Java?

How do I slice arrays in Python, JavaScript, and Java?

In Python, you can slice an array using the syntax array[start:end]. For example, arr[1:4] gives you elements from index 1 to 3.

What about JavaScript?

In JavaScript, you can use the slice method: array.slice(start, end). For instance, arr.slice(1, 4) will return the same elements as in Python.

And how is it done in Java?

In Java, you can use Arrays.copyOfRange(array, start, end) to slice an array. For example, Arrays.copyOfRange(arr, 1, 4) will give you the elements from index 1 to 3.

Are there any differences in how these languages handle negative indices?

Yes, Python supports negative indices to count from the end, while JavaScript and Java do not. In Python, arr[-1] gives the last element.