--- /dev/null
+// 19.1.2.11 Object.isExtensible(O)
+var isObject = require('./_is-object');
+
+require('./_object-sap')('isExtensible', function($isExtensible){
+ return function isExtensible(it){
+ return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;
+ };
+});
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