CODEWITHSUNDEEP
rustwebassembly
Xiao_e_yun
Xiao_e_yun

Reputation: 348

Is there a way to convert a HashMap to JsValue without setting fields myself?

Is there a better way than iter to convert HashMap to JsValue?

let mut map = HashMap::new<String, String>();

// put stuff in the map...

let obj = js_sys::Object::new();
for (k,v) in map.iter() {
    let key = JsValue::from(k);
    let value = JsValue::from(v);
    js_sys::Reflect::set(&obj, &key, &value).unwrap();
}
JsValue::from(obj)

Upvotes: 1

Views: 1369

Answers (1)

kmdreko
kmdreko

Reputation: 60167

From Serializing and Deserializing Arbitrary Data Into and From JsValue with Serde in the wasm-bindgen guide: you can convert any type that is Serialize-able with the help of the serde-wasm-bindgen crate:

Using it, your code would look like this:

serde_wasm_bindgen::to_value(&map).unwrap()

The guide lists another crate, gloo-utils, that offers similar functionality but communicates data differently over the Wasm/Javascript bridge.

Upvotes: 1

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