From 3f9ff2e85c00ac9bef411c40cf4fa7f3f9a24393 Mon Sep 17 00:00:00 2001 From: Steve Klabnik Date: Tue, 12 Aug 2014 08:17:08 -0400 Subject: [PATCH] Guide: array subscript notation --- src/doc/guide.md | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/doc/guide.md b/src/doc/guide.md index ecde51538e2c7..c2d019e3c4a98 100644 --- a/src/doc/guide.md +++ b/src/doc/guide.md @@ -1571,6 +1571,19 @@ for i in vec.iter() { This code will print each number in order, on its own line. +You can access a particular element of a vector, array, or slice by using +**subscript notation**: + +```{rust} +let names = ["Graydon", "Brian", "Niko"]; + +println!("The second name is: {}", names[1]); +``` + +These subscripts start at zero, like in most programming languages, so the +first name is `names[0]` and the second name is `names[1]`. The above example +prints `The second name is Brian`. + There's a whole lot more to vectors, but that's enough to get started. We have now learned all of the most basic Rust concepts. We're ready to start building our guessing game, but we need to know how to do one last thing first: get