diff --git a/crates/backend/src/typegen.rs b/crates/backend/src/typegen.rs
index c8417a1a..846ea47c 100644
--- a/crates/backend/src/typegen.rs
+++ b/crates/backend/src/typegen.rs
@@ -76,7 +76,7 @@ fn escape_json(src: &str) -> String {
       c => {
         let encoded = c.encode_utf16(&mut utf16_buf);
         for utf16 in encoded {
-          write!(&mut escaped, "\\u{:04X}", utf16).unwrap();
+          write!(escaped, "\\u{:04X}", utf16).unwrap();
         }
       }
     }
diff --git a/examples/napi-compat-mode/src/arraybuffer.rs b/examples/napi-compat-mode/src/arraybuffer.rs
index 2ce536c7..2227d467 100644
--- a/examples/napi-compat-mode/src/arraybuffer.rs
+++ b/examples/napi-compat-mode/src/arraybuffer.rs
@@ -6,7 +6,7 @@ use napi::{CallContext, JsArrayBuffer, JsNumber, JsObject, JsTypedArray, JsUndef
 #[js_function(1)]
 pub fn get_arraybuffer_length(ctx: CallContext) -> Result<JsNumber> {
   let buffer = ctx.get::<JsArrayBuffer>(0)?.into_value()?;
-  ctx.env.create_uint32((&buffer).len() as u32)
+  ctx.env.create_uint32(buffer.len() as u32)
 }
 
 #[js_function(1)]
diff --git a/examples/napi-compat-mode/src/buffer.rs b/examples/napi-compat-mode/src/buffer.rs
index 45628d07..24be7ded 100644
--- a/examples/napi-compat-mode/src/buffer.rs
+++ b/examples/napi-compat-mode/src/buffer.rs
@@ -9,7 +9,7 @@ use napi::{
 #[js_function(1)]
 pub fn get_buffer_length(ctx: CallContext) -> Result<JsNumber> {
   let buffer = ctx.get::<JsBuffer>(0)?.into_value()?;
-  ctx.env.create_uint32((&buffer).len() as u32)
+  ctx.env.create_uint32(buffer.len() as u32)
 }
 
 #[js_function(1)]
diff --git a/examples/napi-compat-mode/src/task.rs b/examples/napi-compat-mode/src/task.rs
index 52a688de..56d2352e 100644
--- a/examples/napi-compat-mode/src/task.rs
+++ b/examples/napi-compat-mode/src/task.rs
@@ -60,7 +60,7 @@ impl Task for CountBufferLength {
     if self.data.len() == 10 {
       return Err(Error::from_reason("len can't be 5".to_string()));
     }
-    Ok((&self.data).len())
+    Ok(self.data.len())
   }
 
   fn resolve(&mut self, env: Env, output: Self::Output) -> Result<Self::JsValue> {
diff --git a/examples/napi/src/class.rs b/examples/napi/src/class.rs
index a59227ff..c909d627 100644
--- a/examples/napi/src/class.rs
+++ b/examples/napi/src/class.rs
@@ -234,7 +234,7 @@ impl JsAsset {
 
   #[napi(getter)]
   pub fn get_file_path(&self) -> u32 {
-    return 1;
+    1
   }
 }
 
@@ -277,7 +277,7 @@ impl Optional {
   pub fn option_only(optional: Option<String>) -> String {
     match optional {
       None => "".to_string(),
-      Some(optional) => format!("{}", optional),
+      Some(optional) => optional,
     }
   }
 }