group-by.js 342 B

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  1. var isPrototypeOf = require('../../internals/object-is-prototype-of');
  2. var method = require('../array/virtual/group-by');
  3. var ArrayPrototype = Array.prototype;
  4. module.exports = function (it) {
  5. var own = it.groupBy;
  6. return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.groupBy) ? method : own;
  7. };