fix small typo

4 years ago · 4f438f8d7c
parent 5ac4d3a2c0
commit 4f438f8d7c
1 changed files with 1 additions and 1 deletions
--- a/README.md
+++ b/README.md
@ -5038,7 +5038,7 @@ This prints `["June", "July"]`.



-`.filter_map()`. This is called `filter_map()` because it does `.filter()` and `.map()`. The closure must return an `Option<T>`, and then `filter.map()` takes the value out of each `Option` if it is `Some`. So for example if you were to `.filter_map()` a `vec![Some(2), None, Some(3)]`, it would return `[2, 3]`.
+`.filter_map()`. This is called `filter_map()` because it does `.filter()` and `.map()`. The closure must return an `Option<T>`, and then `filter_map()` takes the value out of each `Option` if it is `Some`. So for example if you were to `.filter_map()` a `vec![Some(2), None, Some(3)]`, it would return `[2, 3]`.

 We will write an example with a `Company` struct. Each company has a `name` so that field is `String`, but the CEO might have recently quit. So the `ceo` field is `Some<String>`. We will `.filter_map()` over some companies to just keep the CEO names.