From 169c23a9bb3e501ae33b944fe6a11357cb95513e Mon Sep 17 00:00:00 2001
From: teppeis <teppeis@gmail.com>
Date: Mon, 31 Oct 2016 03:07:15 +0900
Subject: [PATCH 1/2] Fix Math.hypot to call with zero/one params

---
 externs/es6.js                                   |  1 -
 .../javascript/jscomp/js/es6/math/hypot.js       | 16 ++++++++++------
 .../polyfill_tests/math_hypot_test.js            |  5 ++++-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/externs/es6.js b/externs/es6.js
index c87145cda60..b7d19d0f45b 100644
--- a/externs/es6.js
+++ b/externs/es6.js
@@ -147,7 +147,6 @@ Math.sign = function(value) {};
 Math.cbrt = function(value) {};
 
 /**
- * @param {number} value1
  * @param {...number} var_args
  * @return {number}
  * @nosideeffects
diff --git a/src/com/google/javascript/jscomp/js/es6/math/hypot.js b/src/com/google/javascript/jscomp/js/es6/math/hypot.js
index 36068024cef..407c3bad7c6 100644
--- a/src/com/google/javascript/jscomp/js/es6/math/hypot.js
+++ b/src/com/google/javascript/jscomp/js/es6/math/hypot.js
@@ -24,15 +24,19 @@ $jscomp.polyfill('Math.hypot', function(orig) {
    *
    * <p>Polyfills the static function Math.hypot().
    *
-   * @param {number} x Any number, or value that can be coerced to a number.
-   * @param {number} y Any number, or value that can be coerced to a number.
-   * @param {...*} var_args More numbers.
+   * @param {...number} var_args Any number, or value that can be coerced to a number.
    * @return {number} The square root of the sum of the squares.
    */
-  var polyfill = function(x, y, var_args) {
+  var polyfill = function(var_args) {
+    if (arguments.length === 0) {
+      return 0;
+    } else if (arguments.length === 1) {
+      return Math.abs(Number(arguments[0]));
+    }
+
     // Make the type checker happy.
-    x = Number(x);
-    y = Number(y);
+    var x = Number(arguments[0]);
+    var y = Number(arguments[1]);
     var i, z, sum;
     // Note: we need to normalize the numbers in case of over/underflow.
     var max = Math.max(Math.abs(x), Math.abs(y));
diff --git a/test/com/google/javascript/jscomp/runtime_tests/polyfill_tests/math_hypot_test.js b/test/com/google/javascript/jscomp/runtime_tests/polyfill_tests/math_hypot_test.js
index b76f0b11ffb..5950f7cea91 100644
--- a/test/com/google/javascript/jscomp/runtime_tests/polyfill_tests/math_hypot_test.js
+++ b/test/com/google/javascript/jscomp/runtime_tests/polyfill_tests/math_hypot_test.js
@@ -21,7 +21,10 @@ const testSuite = goog.require('goog.testing.testSuite');
 
 testSuite({
   testHypot() {
-    assertRoughlyEquals(5, Math.hypot(3, 4), 1e-10);
+    assertEquals(0, Math.hypot());
+    assertEquals(3, Math.hypot(3));
+    assertEquals(3, Math.hypot(-3));
+
     assertRoughlyEquals(5, Math.hypot(-3, 4), 1e-10);
     assertRoughlyEquals(13, Math.hypot(5, 12), 1e-10);
     assertRoughlyEquals(13, Math.hypot(5, -12), 1e-10);

From 5832fbaccd0486c880d3675866d7e075de4b3fb3 Mon Sep 17 00:00:00 2001
From: teppeis <teppeis@gmail.com>
Date: Thu, 10 Jan 2019 08:44:40 +0900
Subject: [PATCH 2/2] Delete value2 from params of Math.hypot

---
 externs/es6.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/externs/es6.js b/externs/es6.js
index b7d19d0f45b..b8064e96e55 100644
--- a/externs/es6.js
+++ b/externs/es6.js
@@ -152,7 +152,7 @@ Math.cbrt = function(value) {};
  * @nosideeffects
  * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/hypot
  */
-Math.hypot = function(value1, var_args) {};
+Math.hypot = function(var_args) {};
 
 /**
  * @param {number} value1