| var baseEach = require('./baseEach'); |
| |
| /** |
| * The base implementation of `_.sum` without support for callback shorthands |
| * and `this` binding. |
| * |
| * @private |
| * @param {Array|Object|string} collection The collection to iterate over. |
| * @param {Function} iteratee The function invoked per iteration. |
| * @returns {number} Returns the sum. |
| */ |
| function baseSum(collection, iteratee) { |
| var result = 0; |
| baseEach(collection, function(value, index, collection) { |
| result += +iteratee(value, index, collection) || 0; |
| }); |
| return result; |
| } |
| |
| module.exports = baseSum; |