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src/concurrency/threads.md

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+# Threads
+
+Rust threads work similarly to threads in other languages:
+
+```rust,editable
+use std::thread;
+use std::time::Duration;
+
+fn main() {
+    thread::spawn(|| {
+        for i in 1..10 {
+            println!("Count in thread: {i}!");
+            thread::sleep(Duration::from_millis(5));
+        }
+    });
+
+    for i in 1..5 {
+        println!("Main thread: {i}");
+        thread::sleep(Duration::from_millis(5));
+    }
+}
+```
+
+* Threads are all daemon threads, the main thread does not wait for them.
+* Thread panics are independent of each other.
+  * Panics can carry a payload, which can be unpacked with `downcast_ref`.