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var arrayEach = require('./_arrayEach'),
baseEach = require('./_baseEach'),
isArray = require('./isArray'),
toFunction = require('./_toFunction');
/**
* Iterates over elements of `collection` invoking `iteratee` for each element.
* The iteratee is invoked with three arguments: (value, index|key, collection).
* Iteratee functions may exit iteration early by explicitly returning `false`.
*
* **Note:** As with other "Collections" methods, objects with a "length" property
* are iterated like arrays. To avoid this behavior use `_.forIn` or `_.forOwn`
* for object iteration.
*
* @static
* @memberOf _
* @alias each
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Array|Object} Returns `collection`.
* @example
*
* _([1, 2]).forEach(function(value) {
* console.log(value);
* });
* // => logs `1` then `2`
*
* _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
* console.log(key);
* });
* // => logs 'a' then 'b' (iteration order is not guaranteed)
*/
function forEach(collection, iteratee) {
return (typeof iteratee == 'function' && isArray(collection))
? arrayEach(collection, iteratee)
: baseEach(collection, toFunction(iteratee));
}
module.exports = forEach;
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