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is-iterable.js 352 B

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  1. 'use strict';
  2. var isString = require('es5-ext/string/is-string')
  3. , iteratorSymbol = require('es6-symbol').iterator
  4. , isArray = Array.isArray;
  5. module.exports = function (value) {
  6. if (value == null) return false;
  7. if (isArray(value)) return true;
  8. if (isString(value)) return true;
  9. return (typeof value[iteratorSymbol] === 'function');
  10. };