Replace usages of char_at with trim.

de-DE/faq.md

@@ -367,7 +367,7 @@ Wie kann ich einen <code>String</code> oder <code>Vec&lt;T&gt;</code> in einen S
 Normalerweise kannst du eine Referenz zu einem `String` oder `Vec<T>` immer dort übergeben, wo ein Slice passend wäre.
 Mithilfe von [Deref Coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html) können [`String`s][String] und [`Vec`s][Vec] automatisch in ihren jeweiligen Slice-Typen „zerfallen“, wenn man eine Referenz darauf mit `&` oder `&mut` übergibt.
 
-Methoden, die auf `&str` oder `&[T]` implementiert wurden, können auf `String` und `Vec<T>` direkt aufgerufen werden. Der Aufruf `some_string.char_at(0)` zum Beispiel funktioniert, obwohl `char_at` eine Methode von `&str` und `some_string` ein `String` ist.
+Methoden, die auf `&str` oder `&[T]` implementiert wurden, können auf `String` und `Vec<T>` direkt aufgerufen werden. Der Aufruf `some_string.trim()` zum Beispiel funktioniert, obwohl `trim` eine Methode von `&str` und `some_string` ein `String` ist.
 
 Manchmal, zum Beispiel in generischem Code, wird manuelle Konversion notwendig. Diese kann man mit dem _Slicing-Operator_ `&my_vec[..]` erreicht werden.
 

en-US/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/second-edition/ch15-02-deref.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

es-ES/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

fr-FR/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

id-ID/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

it-IT/faq.md

@@ -452,7 +452,7 @@ Solitamente, puoi passare un riferimento a una `String` o ad un `Vec<T>` ovunque
 Utilizzando le [costrizione da de-riferimento](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`][String] e [`Vec`][Vec] verrano automaticamente ridotti alle rispettive partizioni quando passate come riferimento tramite `&` o `& mut`.
 
 I metodi implementati su `&str` e `&[T]` possono essere utilizzati direttamente su `String` e `Vec<T>`.
-Ad esempio `una_stringa.char_at(0)` funzionerà anche se `char_at` è un metodo su `&str` e `una_stringa` è una `String`.
+Ad esempio `una_stringa.trim()` funzionerà anche se `trim` è un metodo su `&str` e `una_stringa` è una `String`.
 
 In alcuni casi, come nella programmazione generica è necessario convertire manualmente, questa operazione è effettuabile utilizzando l'operatore di partizione, in questo modo: `&mio_vettore[..]`.
 

ja-JP/faq.md

@@ -392,7 +392,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

ko-KR/faq.md

@@ -443,7 +443,7 @@ match val.do_something() {
 [`String`][String]과 [`Vec`][Vec]이 `&`나 `& mut` 참조로 넘겨질 때는 [deref 변환(coercion)](https://doc.rust-lang.org/stable/book/deref-coercions.html)을 통해 각자 대응되는 슬라이스로 자동으로 변환됩니다.
 
 `&str`과 `&[T]`에 구현된 메소드들은 `String`과 `Vec<T>`에서 바로 접근할 수 있습니다.
-예를 들어 `char_at`은 `&str`의 메소드이고 `some_string`이 `String`이라 하더라도 `some_string.char_at(0)`은 동작할 것입니다.
+예를 들어 `trim`은 `&str`의 메소드이고 `some_string`이 `String`이라 하더라도 `some_string.trim()`은 동작할 것입니다.
 
 일반화된 코드 같이 몇몇 상황에서는 수동으로 변환해야 할 필요가 있습니다.
 수동 변환은 슬라이스 연산자를 써서 `&my_vec[..]`과 같이 할 수 있습니다.

pt-BR/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

sv-SE/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/second-edition/ch15-02-deref.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

vi-VN/faq.md

@@ -373,7 +373,7 @@ How can I convert a <code>String</code> or <code>Vec&lt;T&gt;</code> to a slice
 Usually, you can pass a reference to a `String` or `Vec<T>` wherever a slice is expected.
 Using [Deref coercions](https://doc.rust-lang.org/stable/book/deref-coercions.html), [`String`s][String] and [`Vec`s][Vec] will automatically coerce to their respective slices when passed by reference with `&` or `& mut`.
 
-Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.char_at(0)` will work even though `char_at` is a method on `&str` and `some_string` is a `String`.
+Methods implemented on `&str` and `&[T]` can be accessed directly on `String` and `Vec<T>`. For example, `some_string.trim()` will work even though `trim` is a method on `&str` and `some_string` is a `String`.
 
 In some cases, such as generic code, it's necessary to convert manually. Manual conversions can be achieved using the slicing operator, like so: `&my_vec[..]`.
 

zh-CN/faq.md

@@ -369,7 +369,7 @@ match val.do_something() {
 
 通常，你可以在需要切片的地方传入 `String` 或 `Vec<T>`。使用[强制解引（Deref）](https://doc.rust-lang.org/stable/book/deref-coercions.html)，在用 `&` 或 `&mut` 传递引用时，[`String`][String] 和 [`Vec`][Vec] 会自动强制转换为对应的切片。
 
-在 `&str` 和 `&[T]` 上实现的方法可以直接在 `String` 和 `Vec<T>` 上访问。例如，即使 `char_at` 是 `&str` 上的方法，而 `some_string` 是一个 `String`，`some_string.char_at(0)` 也可以运行。
+在 `&str` 和 `&[T]` 上实现的方法可以直接在 `String` 和 `Vec<T>` 上访问。例如，即使 `trim` 是 `&str` 上的方法，而 `some_string` 是一个 `String`，`some_string.trim()` 也可以运行。
 
 在某些情况下，例如泛型代码，需要手动转换。可以用切片操作符实现手动转换，如：`&my_vec[..]`。