14 lines
501 B
JavaScript
14 lines
501 B
JavaScript
|
'use strict';
|
||
|
|
var call = require('../internals/function-call');
|
||
|
|
var hasOwn = require('../internals/has-own-property');
|
||
|
|
var isPrototypeOf = require('../internals/object-is-prototype-of');
|
||
|
|
var regExpFlags = require('../internals/regexp-flags');
|
||
|
|
|
||
|
|
var RegExpPrototype = RegExp.prototype;
|
||
|
|
|
||
|
|
module.exports = function (R) {
|
||
|
|
var flags = R.flags;
|
||
|
|
return flags === undefined && !('flags' in RegExpPrototype) && !hasOwn(R, 'flags') && isPrototypeOf(RegExpPrototype, R)
|
||
|
|
? call(regExpFlags, R) : flags;
|
||
|
|
};
|