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/**
* The base implementation of `_.sum` and `_.sumBy` without support for
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {number} Returns the sum.
*/
function baseSum(array, iteratee) {
var result,
index = -1,
length = array.length;
while (++index < length) {
var current = iteratee(array[index]);
if (current !== undefined) {
result = result === undefined ? current : (result + current);
}
}
return result;
}
module.exports = baseSum;
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