diff --git a/src/js.rs b/src/js.rs index cef43b16..9af69df5 100644 --- a/src/js.rs +++ b/src/js.rs @@ -447,6 +447,12 @@ extern { #[wasm_bindgen(method, js_class = "String", js_name = charAt)] pub fn char_at(this: &JsString, index: u32) -> JsString; + /// The codePointAt() method returns a non-negative integer that is the Unicode code point value. + /// + /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt + #[wasm_bindgen(method, js_class = "String", js_name = codePointAt)] + pub fn code_point_at(this: &JsString, pos: u32) -> JsValue; + /// The indexOf() method returns the index within the calling String object of /// the first occurrence of the specified value, starting the search at fromIndex. /// Returns -1 if the value is not found. diff --git a/tests/all/js_globals/JsString.rs b/tests/all/js_globals/JsString.rs index 9bfe0ba4..10710ebb 100644 --- a/tests/all/js_globals/JsString.rs +++ b/tests/all/js_globals/JsString.rs @@ -31,6 +31,34 @@ fn char_at() { .test() } +#[test] +fn code_point_at() { + 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 string_code_point_at(this: &js::JsString, pos: u32) -> JsValue { + this.code_point_at(pos) + } + "#) + .file("test.ts", r#" + import * as assert from "assert"; + import * as wasm from "./out"; + + export function test() { + assert.equal(wasm.string_code_point_at('ABC', 1), 66); + assert.equal(wasm.string_code_point_at('\uD800\uDC00', 0), 65536); + assert.equal(wasm.string_code_point_at('XYZ', 42), undefined); + } + "#) + .test() +} + #[test] fn starts_with() { project()