--- /dev/null
+// 26.1.12 Reflect.preventExtensions(target)
+var $export = require('./_export')
+ , anObject = require('./_an-object')
+ , $preventExtensions = Object.preventExtensions;
+
+$export($export.S, 'Reflect', {
+ preventExtensions: function preventExtensions(target){
+ anObject(target);
+ try {
+ if($preventExtensions)$preventExtensions(target);
+ return true;
+ } catch(e){
+ return false;
+ }
+ }
+});
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