--- /dev/null
+var isObject = require('../internals/is-object');
+var classof = require('../internals/classof-raw');
+var wellKnownSymbol = require('../internals/well-known-symbol');
+
+var MATCH = wellKnownSymbol('match');
+
+// `IsRegExp` abstract operation
+// https://tc39.github.io/ecma262/#sec-isregexp
+module.exports = function (it) {
+ var isRegExp;
+ return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : classof(it) == 'RegExp');
+};