增加井号重复判断

‘liusuyi’

2023-07-03 29d8ea701df5bba27bda837a550853b299207040

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var global = require('../internals/global');
var setToStringTag = require('../internals/set-to-string-tag');
 
// JSON[@@toStringTag] property
// https://tc39.es/ecma262/#sec-json-@@tostringtag
setToStringTag(global.JSON, 'JSON', true);