Configring node js.

node_modules/core-js/modules/es6.regexp.constructor.js

@@ -0,0 +1,43 @@
+var global            = require('./_global')
+  , inheritIfRequired = require('./_inherit-if-required')
+  , dP                = require('./_object-dp').f
+  , gOPN              = require('./_object-gopn').f
+  , isRegExp          = require('./_is-regexp')
+  , $flags            = require('./_flags')
+  , $RegExp           = global.RegExp
+  , Base              = $RegExp
+  , proto             = $RegExp.prototype
+  , re1               = /a/g
+  , re2               = /a/g
+  // "new" creates a new object, old webkit buggy here
+  , CORRECT_NEW       = new $RegExp(re1) !== re1;
+
+if(require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function(){
+  re2[require('./_wks')('match')] = false;
+  // RegExp constructor can alter flags and IsRegExp works correct with @@match
+  return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
+}))){
+  $RegExp = function RegExp(p, f){
+    var tiRE = this instanceof $RegExp
+      , piRE = isRegExp(p)
+      , fiU  = f === undefined;
+    return !tiRE && piRE && p.constructor === $RegExp && fiU ? p
+      : inheritIfRequired(CORRECT_NEW
+        ? new Base(piRE && !fiU ? p.source : p, f)
+        : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)
+      , tiRE ? this : proto, $RegExp);
+  };
+  var proxy = function(key){
+    key in $RegExp || dP($RegExp, key, {
+      configurable: true,
+      get: function(){ return Base[key]; },
+      set: function(it){ Base[key] = it; }
+    });
+  };
+  for(var keys = gOPN(Base), i = 0; keys.length > i; )proxy(keys[i++]);
+  proto.constructor = $RegExp;
+  $RegExp.prototype = proto;
+  require('./_redefine')(global, 'RegExp', $RegExp);
+}
+
+require('./_set-species')('RegExp');