web 3d图形渲染器
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  1. var classof = require('../internals/classof');
  2. var wellKnownSymbol = require('../internals/well-known-symbol');
  3. var Iterators = require('../internals/iterators');
  4. var ITERATOR = wellKnownSymbol('iterator');
  5. module.exports = function (it) {
  6. var O = Object(it);
  7. return O[ITERATOR] !== undefined
  8. || '@@iterator' in O
  9. // eslint-disable-next-line no-prototype-builtins -- safe
  10. || Iterators.hasOwnProperty(classof(O));
  11. };