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node_modules/lodash/_baseNth.js 483 Bytes
aaac7fed   liuqimichale   add
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  var isIndex = require('./_isIndex');
  
  /**
   * The base implementation of `_.nth` which doesn't coerce arguments.
   *
   * @private
   * @param {Array} array The array to query.
   * @param {number} n The index of the element to return.
   * @returns {*} Returns the nth element of `array`.
   */
  function baseNth(array, n) {
    var length = array.length;
    if (!length) {
      return;
    }
    n += n < 0 ? length : 0;
    return isIndex(n, length) ? array[n] : undefined;
  }
  
  module.exports = baseNth;