优化

‘liusuyi’

2023-12-14 9d5493abf19d379382bbe4a45e006b974c137018

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var defineWellKnownSymbol = require('../internals/well-known-symbol-define');
 
// `Symbol.observable` well-known symbol
// https://github.com/tc39/proposal-observable
defineWellKnownSymbol('observable');