diff --git a/src/js.rs b/src/js.rs index b6a55114..e53ae6da 100644 --- a/src/js.rs +++ b/src/js.rs @@ -318,6 +318,12 @@ extern { /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete #[wasm_bindgen(method)] pub fn delete(this: &Map, key: &str) -> bool; + + /// The get() method returns a specified element from a Map object. + /// + /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get + #[wasm_bindgen(method)] + pub fn get(this: &Map, key: &JsValue) -> JsValue; } // Math diff --git a/tests/all/js_globals/Map.rs b/tests/all/js_globals/Map.rs index a8a7ace3..1279c482 100644 --- a/tests/all/js_globals/Map.rs +++ b/tests/all/js_globals/Map.rs @@ -64,4 +64,35 @@ fn delete() { } "#) .test() +} + +#[test] +fn get() { + project() + .file("src/lib.rs", r#" + #![feature(proc_macro, wasm_custom_section)] + + extern crate wasm_bindgen; + use wasm_bindgen::prelude::*; + use wasm_bindgen::js; + + #[wasm_bindgen] + pub fn map_get(this: &js::Map, key: &JsValue) -> JsValue { + this.get(key) + } + "#) + .file("test.ts", r#" + import * as assert from "assert"; + import * as wasm from "./out"; + + export function test() { + const map = new Map(); + map.set('foo', 'bar'); + map.set(1, 2) + assert.equal(wasm.map_get(map, 'foo'), 'bar'); + assert.equal(wasm.map_get(map, 1), 2); + assert.equal(wasm.map_get(map, 2), undefined); + } + "#) + .test() } \ No newline at end of file