What is the equivalent of x[i:] in Scala?

Question

In Python, you can get a sublist from a certain starting index to the end using x[i:], for example if x = [1, 2, 3, 4], x[1:] would give you [2, 3, 4]. I was wondering what is the equivalent way to do this in Scala.

score 2 · Accepted Answer · answered Nov 15 '14 at 16:34

2

Use drop for this case:

x.drop(1)

For the particular case of 1, we usually use x.tail instead.

answered Nov 15 '14 at 16:34

sjrd

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There's an important difference between `.drop(1)` and `tail`: `tail` throws an exception on an empty collection. – Travis Brown Nov 15 '14 at 18:05
Good point. I had overlooked that. – sjrd Nov 15 '14 at 18:31

score 1 · Answer 2 · answered Nov 15 '14 at 16:34

1

It's called drop and you use it like xs.drop(i).

answered Nov 15 '14 at 16:34

What is the equivalent of x[i:] in Scala?

2 Answers2