add playground online check

.github/workflows/check.yml

@@ -8,8 +8,6 @@ on:
   pull_request:
     branches:
       - "*"
-
-
 jobs:
   build:
     strategy:
@@ -45,6 +43,18 @@ jobs:
           override: true
       - name: Build on nightly
         run: cargo build --release
+
+      # wasm check
+      - uses: jetli/wasm-pack-action@v0.4.0
+        with:
+          version: latest
+      - name: Setup wasm-pack
+        run: |
+          cargo b
+          wasm-pack build --target bundler 
+          wasm-pack build --target web
+        working-directory: ./playground/wasm
+
   test:
     strategy:
       matrix:

playground/wasm/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "wasm"
+version = "0.1.0"
+edition = "2021"
+
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+
+[dependencies]
+duration-str = { path = "../../"}

playground/wasm/src/lib.rs

@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}