diff --git a/src/js.rs b/src/js.rs index 0fd94ea9..246fa759 100644 --- a/src/js.rs +++ b/src/js.rs @@ -151,4 +151,11 @@ extern { /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push #[wasm_bindgen(method)] pub fn push(this: &Array, value: JsValue) -> u32; + + /// The reverse() method reverses an array in place. + /// The first array element becomes the last, and the last array element becomes the first. + /// + /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse + #[wasm_bindgen(method)] + pub fn reverse(this: &Array) -> Array; } \ No newline at end of file diff --git a/tests/all/js_globals/Array.rs b/tests/all/js_globals/Array.rs index ff28217d..175267b4 100644 --- a/tests/all/js_globals/Array.rs +++ b/tests/all/js_globals/Array.rs @@ -263,4 +263,34 @@ fn push() { } "#) .test() +} + +#[test] +fn reverse() { + 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 reverse_array(this: &js::Array) -> js::Array { + this.reverse() + } + + "#) + .file("test.ts", r#" + import * as assert from "assert"; + import * as wasm from "./out"; + + export function test() { + let characters = [8, 5, 4, 3, 1, 2] + let reversed = wasm.reverse_array(characters); + assert.equal(reversed[0], 2); + assert.equal(reversed[5], 8); + } + "#) + .test() } \ No newline at end of file