修改了index.js

feige

2023-04-08 6a99341341912b65a7cbfaaad79c15bec1fb9368

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var $ = require('../internals/export');
var sign = require('../internals/math-sign');
 
// `Math.sign` method
// https://tc39.es/ecma262/#sec-math.sign
$({ target: 'Math', stat: true }, {
  sign: sign
});