1var baseSum = require('./_baseSum'),
2    identity = require('./identity');
3
4/**
5 * Computes the sum of the values in `array`.
6 *
7 * @static
8 * @memberOf _
9 * @since 3.4.0
10 * @category Math
11 * @param {Array} array The array to iterate over.
12 * @returns {number} Returns the sum.
13 * @example
14 *
15 * _.sum([4, 2, 8, 6]);
16 * // => 20
17 */
18function sum(array) {
19  return (array && array.length)
20    ? baseSum(array, identity)
21    : 0;
22}
23
24module.exports = sum;
25