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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
commit26105034da4fcce7ac883c899d781f016559310d (patch)
treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/core-js/modules/_classof.js
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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diff --git a/node_modules/core-js/modules/_classof.js b/node_modules/core-js/modules/_classof.js
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+// getting tag from 19.1.3.6 Object.prototype.toString()
+var cof = require('./_cof');
+var TAG = require('./_wks')('toStringTag');
+// ES3 wrong here
+var ARG = cof(function () { return arguments; }()) == 'Arguments';
+
+// fallback for IE11 Script Access Denied error
+var tryGet = function (it, key) {
+ try {
+ return it[key];
+ } catch (e) { /* empty */ }
+};
+
+module.exports = function (it) {
+ var O, T, B;
+ return it === undefined ? 'Undefined' : it === null ? 'Null'
+ // @@toStringTag case
+ : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
+ // builtinTag case
+ : ARG ? cof(O)
+ // ES3 arguments fallback
+ : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
+};