Updated kalk library README to include a JavaScript example, disabled wasm optimization, and created wasm build script

kalk/Cargo.toml

@@ -24,4 +24,8 @@ wasm-bindgen = "0.2.69"
 wasm-bindgen-test = "0.3.19"
 
 [features]
-default = ["rug"]
+default = ["rug"]
+
+# Breaks when optimizing for some reason.
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false

kalk/README.md

@@ -17,7 +17,7 @@ f(a, 2)
 * Syntax highlighting
 * Special-symbol completion on tab. Eg. write `sqrt` and press tab. It will be turned into `√`.
 
-## Usage
+## Rust Usage
 ```rust
 use kalk::parser;
 let mut parser_context = parser::Context::new();
@@ -26,8 +26,15 @@ let result = parser::eval(&mut parser_context, "5*3", precision).unwrap().unwrap
 assert_eq!(result.to_f64(), 15f64);
 ```
 
-## Using f64 instead of rug::Float
+### Using f64 instead of rug::Float
 The cargo feature `rug` enables rug, and is used by default. If you disalbe this, kalk will use `f64` instead, making it more portable.
 
-## Compiling
+### Compiling
 Make sure you have `diffutils` `gcc` `make` and `m4` installed.
+
+## JavaScript Usage
+```js
+const kalk = await import("@paddim8/kalk");
+const context = new kalk.Context();
+console.log(context.evaluate("2pi + 3").toScientificNotation().toString());
+```

kalk/wasm-build.sh

@@ -0,0 +1 @@
+wasm-pack build --scope paddim8 -- --no-default-features