swc/bindings/binding_core_wasm/example/index.js

let settings = {
    jsc: {
        target: "es2016",
        parser: {
            syntax: "ecmascript",
            jsx: true,
            dynamicImport: false,
            numericSeparator: false,
            privateMethod: false,
            functionBind: false,
            exportDefaultFrom: false,
            exportNamespaceFrom: false,
            decorators: false,
            decoratorsBeforeExport: false,
            topLevelAwait: false,
            importMeta: false,
        },
    },
};

let code = `
let a = 1;
let b = {
    c: {
        d: 1
    }

};
console.log(b?.c?.d);

let MyComponent = () => {
    return (<div a={10}>
        <p>Hello World!</p>
    </div>);
}
`;

const swc = import("./pkg/wasm.js");
swc.then((swc) => {
    console.log("SWC Loaded", swc);
    let result = swc.transformSync(code, settings);
    console.log("result from transformSync", result);
    console.log(result.code);
    document.getElementById("result").innerHTML =
        "<xmp>" + result.code + "</xmp>";
    document.getElementById("source").innerHTML = "<xmp>" + code + "</xmp>";
});