Fixed wasm build with string error and warning

Cargo.toml

@@ -3,6 +3,9 @@ name = "wasmweb-sample"
 version = "0.1.0"
 authors = ["Sambo Chea <sombochea@cubetiqs.com>"]
 edition = "2018"
+description = "Just WASM Sample for CUBETIQ Solution"
+license = "MIT"
+repository = "https://github.com/CUBETIQ/wasmweb-sample.git"
 
 [dependencies.web-sys]
 version = "0.3"
@@ -40,3 +43,6 @@ wasm-bindgen-test = "0.3.13"
 [profile.release]
 # Tell `rustc` to optimize for small code size.
 opt-level = "s"
+
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false

src/lib.rs

@@ -1,4 +1,5 @@
 use wasm_bindgen::prelude::*;
+use math;
 
 extern crate web_sys;
 
@@ -21,18 +22,13 @@ extern {
 }
 
 #[wasm_bindgen]
-extern {
-    fn sum(a: i32, b: i32) -> i32;
-}
-
-#[wasm_bindgen]
-pub fn greet() {
-    alert("Hey, CUBETIQ Solution!");
+pub fn greet() -> String {
+    "Hey, CUBETIQ Solution!".into()
 }
 
 #[wasm_bindgen]
 pub fn just_sum() -> i32 {
-    let sum = sum(100, 50);
+    let sum = math::sum(100, 50);
     log(&format!("Just Sum {} + {} = {}", 100, 50, sum));
     return sum;
 }

src/main.rs

@@ -2,5 +2,10 @@ use math;
 
 fn main() {
     let sum = math::sum(1, 2);
-    println!("Sum number {}", sum)
+    println!("Sum number {}", sum);
+    println!("Greetings, {}", welcome());
+}
+
+fn welcome() -> String {
+    return String::from("Hello, Sambo")
 }

www/index.ts

@@ -1,8 +1,8 @@
 // import * as wasm from "hello-wasm-pack";
-import * as wasm from "./../pkg/wasmweb_sample"
-
-wasm.greet()
-wasm.log("[WEB] external logging...")
-
-const sum = wasm.just_sum()
-console.log("Sum of number", sum)
+// import * as wasm from 'wasmweb-sample'
+//
+// wasm.log("[WEB] external logging...")
+//
+// const greeting = wasm.greet()
+// const sum = wasm.just_sum()
+// console.log("Sum of number", sum)

www/package.json

@@ -33,8 +33,5 @@
     "webpack": "^4.29.3",
     "webpack-cli": "^3.1.0",
     "webpack-dev-server": "^3.1.5"
-  },
-  "dependencies": {
-    "wasmweb-sample": "file:../pkg"
   }
 }