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'use strict';

var reduceArray = require('./array/reduce'),

reduceObject = require('./object/reduce');

/**

* # Reduce

* A fast `.reduce()` implementation.

* @param {Array|Object} subject The array or object to reduce over.

* @param {Function} fn The reducer function.

* @param {mixed} initialValue The initial value for the reducer, defaults to subject[0].

* @param {Object} thisContext The context for the reducer.

* @return {Array|Object} The array or object containing the results.

module.exports = function fastReduce (subject, fn, initialValue, thisContext) {

if (subject instanceof Array) {

return reduceArray(subject, fn, initialValue, thisContext);

}

else {

return reduceObject(subject, fn, initialValue, thisContext);

}

};