odin-javascript-exercises/node_modules/lodash/_baseNth.js

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2017-12-15 10:56:14 -08:00
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;