1 files changed, 32 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/es.json.stringify.js b/node_modules/core-js/modules/es.json.stringify.js
new file mode 100644
index 0000000..56ba89f
--- /dev/null
+++ b/node_modules/core-js/modules/es.json.stringify.js
@@ -0,0 +1,32 @@
+var $ = require('../internals/export');
+var getBuiltIn = require('../internals/get-built-in');
+var fails = require('../internals/fails');
+
+var $stringify = getBuiltIn('JSON', 'stringify');
+var re = /[\uD800-\uDFFF]/g;
+var low = /^[\uD800-\uDBFF]$/;
+var hi = /^[\uDC00-\uDFFF]$/;
+
+var fix = function (match, offset, string) {
+  var prev = string.charAt(offset - 1);
+  var next = string.charAt(offset + 1);
+  if ((low.test(match) && !hi.test(next)) || (hi.test(match) && !low.test(prev))) {
+    return '\\u' + match.charCodeAt(0).toString(16);
+  } return match;
+};
+
+var FORCED = fails(function () {
+  return $stringify('\uDF06\uD834') !== '"\\udf06\\ud834"'
+    || $stringify('\uDEAD') !== '"\\udead"';
+});
+
+if ($stringify) {
+  // https://github.com/tc39/proposal-well-formed-stringify
+  $({ target: 'JSON', stat: true, forced: FORCED }, {
+    // eslint-disable-next-line no-unused-vars
+    stringify: function stringify(it, replacer, space) {
+      var result = $stringify.apply(null, arguments);
+      return typeof result == 'string' ? result.replace(re, fix) : result;
+    }
+  });
+}