diff --git a/deno_run_wasm/run_wasm.ts b/deno_run_wasm/run_wasm.ts
new file mode 100644
index 0000000..60f40a4
--- /dev/null
+++ b/deno_run_wasm/run_wasm.ts
@@ -0,0 +1,12 @@
+const wasmCode = await Deno.readFile("./target/wasm32-unknown-unknown/debug/wasm_deno_example.wasm");
+const wasmModule = new WebAssembly.Module(wasmCode);
+const wasmInstance = new WebAssembly.Instance(wasmModule);
+const {
+    square,
+} = wasmInstance.exports;
+
+console.log(square(1));
+console.log(square(2));
+console.log(square(3));
+console.log(square(4));
+
diff --git a/deno_run_wasm/warsam_sample/src/main.rs b/deno_run_wasm/warsam_sample/src/main.rs
deleted file mode 100644
index e7a11a9..0000000
--- a/deno_run_wasm/warsam_sample/src/main.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-fn main() {
-    println!("Hello, world!");
-}
diff --git a/deno_run_wasm/wasm_sample/Cargo.lock b/deno_run_wasm/wasm_sample/Cargo.lock
new file mode 100644
index 0000000..a63689e
--- /dev/null
+++ b/deno_run_wasm/wasm_sample/Cargo.lock
@@ -0,0 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "warsam_sample"
+version = "0.1.0"
diff --git a/deno_run_wasm/warsam_sample/Cargo.toml b/deno_run_wasm/wasm_sample/Cargo.toml
similarity index 80%
rename from deno_run_wasm/warsam_sample/Cargo.toml
rename to deno_run_wasm/wasm_sample/Cargo.toml
index 1305965..a6667ce 100644
--- a/deno_run_wasm/warsam_sample/Cargo.toml
+++ b/deno_run_wasm/wasm_sample/Cargo.toml
@@ -1,9 +1,12 @@
 [package]
-name = "warsam_sample"
+name = "wasm_sample"
 version = "0.1.0"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[lib]
+crate-type =["cdylib"]
+
 [dependencies]
diff --git a/deno_run_wasm/wasm_sample/build.sh b/deno_run_wasm/wasm_sample/build.sh
new file mode 100644
index 0000000..b878198
--- /dev/null
+++ b/deno_run_wasm/wasm_sample/build.sh
@@ -0,0 +1 @@
+cargo build --target wasm32-unknown-unknown
diff --git a/deno_run_wasm/wasm_sample/src/lib.rs b/deno_run_wasm/wasm_sample/src/lib.rs
new file mode 100644
index 0000000..59f3df2
--- /dev/null
+++ b/deno_run_wasm/wasm_sample/src/lib.rs
@@ -0,0 +1,4 @@
+#[no_mangle]
+pub extern "C" fn square(x: u32) -> u32 {
+    x * x
+}