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guide: Add str examples to supported types section

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Nick Fitzgerald
2018-08-13 16:12:58 -07:00
parent 8e19645006
commit fa72afe286
4 changed files with 23 additions and 1 deletions
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guide/src/reference/types.md
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@ -44,13 +44,25 @@ JavaScript.
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
| No | Yes | No | Yes | Yes | No | JavaScript string value |
| No | Yes | No | No | No | No | JavaScript string value |
Copies the string's contents back and forth between the JavaScript
garbage-collected heap and the Wasm linear memory with `TextDecoder` and
`TextEncoder`. If you don't want to perform this copy, and would rather work
with handles to JavaScript string values, use the `js_sys::JsString` type.
### Example Rust Usage
```rust
{{#include ../../../examples/guide-supported-types-examples/src/str.rs}}
```
### Example JavaScript Usage
```js
{{#include ../../../examples/guide-supported-types-examples/str.js}}
```
## `String`
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |