Add bindings for String.from_char_code

crates/js-sys/src/lib.rs

@@ -2940,6 +2940,34 @@ extern "C" {
     #[wasm_bindgen(method, js_class = "String", js_name = endsWith)]
     pub fn ends_with(this: &JsString, search_string: &str, length: i32) -> bool;
 
+    /// The static String.fromCharCode() method returns a string created from
+    /// the specified sequence of UTF-16 code units.
+    ///
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    ///
+    /// # Notes
+    ///
+    /// There are a few bindings to `from_char_code` in `js-sys`: `from_char_code1`, `from_char_code2`, etc...
+    /// with different arities.
+    #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
+    pub fn from_char_code1(a: f64) -> JsString;
+
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
+    pub fn from_char_code2(a: f64, b: f64) -> JsString;
+
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
+    pub fn from_char_code3(a: f64, b: f64, c: f64) -> JsString;
+
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
+    pub fn from_char_code4(a: f64, b: f64, c: f64, d: f64) -> JsString;
+
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
+    pub fn from_char_code5(a: f64, b: f64, c: f64, d: f64, e: f64) -> JsString;
+
     /// The `includes()` method determines whether one string may be found
     /// within another string, returning true or false as appropriate.
     ///

crates/js-sys/tests/wasm/JsString.rs

@@ -58,6 +58,19 @@ fn ends_with() {
     assert_eq!(js.ends_with("to be", 19), true);
 }
 
+#[wasm_bindgen_test]
+fn from_char_code() {
+    let s = "½+¾=";
+    let codes : Vec<f64> = s.chars()
+        .map(|char| char as u32 as f64)
+        .collect();
+
+    assert_eq!(JsString::from_char_code1(codes[0]), "½");
+    assert_eq!(JsString::from_char_code2(codes[0], codes[1]), "½+");
+    assert_eq!(JsString::from_char_code3(codes[0], codes[1], codes[2]), "½+¾");
+    assert_eq!(JsString::from_char_code4(codes[0], codes[1], codes[2], codes[3]), "½+¾=");
+}
+
 #[wasm_bindgen_test]
 fn includes() {
     let str = JsString::from("Blue Whale");