removed double call of infinite scroll callback

Fixes #50

CHANGELOG.md

@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixes 🍕
 
 - `use_raf_fn` and `use_timestamp` no longer spam warnings because of `get`ting signals outside of reactive contexts.
+- `use_infinite_scroll` no longer calls the callback twice for the same event
 
 ## [0.8.2] - 2023-11-09
 

Cargo.toml

@@ -27,11 +27,11 @@ prost = { version = "0.12", optional = true }
 serde = { version = "1", optional = true }
 serde_json = { version = "1", optional = true }
 thiserror = "1.0"
-wasm-bindgen = "0.2.87"
+wasm-bindgen = "0.2.88"
 wasm-bindgen-futures = "0.4"
 
 [dependencies.web-sys]
-version = "0.3"
+version = "0.3.65"
 features = [
   "AddEventListenerOptions",
   "BinaryType",

src/use_infinite_scroll.rs

@@ -186,7 +186,13 @@ where
 
     let _ = watch(
         move || state.arrived_state.get().get_direction(direction),
-        move |_, _, _| {
+        move |arrived, prev_arrived, _| {
+            if let Some(prev_arrived) = prev_arrived {
+                if prev_arrived == arrived {
+                    return;
+                }
+            }
+
             check_and_load
                 .get_value()
                 .expect("check_and_load is set above")()