From 5fddcf38685af5ce4777441ed89691f58add8a9d Mon Sep 17 00:00:00 2001
From: Tyler Wilcock <tyler.l.wilcock@gmail.com>
Date: Mon, 23 Jul 2018 09:11:03 -0500
Subject: [PATCH] Add Math.hypot binding (#538)

* Add Number.isNaN() binding

* Add binding for Math.hypot()
---
 crates/js-sys/src/lib.rs         | 6 ++++++
 crates/js-sys/tests/wasm/Math.rs | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/crates/js-sys/src/lib.rs b/crates/js-sys/src/lib.rs
index 246abc8d..fc1e69c3 100644
--- a/crates/js-sys/src/lib.rs
+++ b/crates/js-sys/src/lib.rs
@@ -1154,6 +1154,12 @@ extern "C" {
     #[wasm_bindgen(static_method_of = Math)]
     pub fn fround(x: f64) -> f32;
 
+    /// The Math.hypot() function returns the square root of the sum of squares of its arguments.
+    ///
+    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
+    #[wasm_bindgen(static_method_of = Math)]
+    pub fn hypot(x: f64, y: f64) -> f64;
+
     /// The Math.imul() function returns the result of the C-like 32-bit multiplication of the
     /// two parameters.
     ///
diff --git a/crates/js-sys/tests/wasm/Math.rs b/crates/js-sys/tests/wasm/Math.rs
index eb83b79c..8863fa82 100644
--- a/crates/js-sys/tests/wasm/Math.rs
+++ b/crates/js-sys/tests/wasm/Math.rs
@@ -128,6 +128,14 @@ fn fround() {
     assert!(Math::fround(-5.05) == -5.050000190734863);
 }
 
+#[wasm_bindgen_test]
+fn hypot() {
+    assert!(Math::hypot(3., 4.) == 5.);
+    assert!(Math::hypot(3.9, 5.2) == 6.5);
+    assert!(Math::hypot(6., 8.) == 10.);
+    assert!(Math::hypot(7., 24.) == 25.);
+}
+
 #[wasm_bindgen_test]
 fn imul() {
     assert!(Math::imul(3, 4) == 12);