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Add an example on how to use watch with a loop - example by Alice Ryhl #6892

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Add an example on how to use watch with a loop - example by Alice Ryhl #6892

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9 changes: 9 additions & 0 deletions tokio/src/sync/watch.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,15 @@
//!
//! # Examples
//!
//! The following example borrows values as they arrive in channel:
//!
//! ```
//! while recv.changed().await.is_ok() {
//! let value = recv.borrow();
//! // use value
//! }
//! // reaching this line means all senders are dropped
//!````
//! The following example prints `hello! world! `.
//!
//! ```
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