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41 lines
1.3 KiB
41 lines
1.3 KiB
import arrayEach from './_arrayEach.js'; |
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import baseEach from './_baseEach.js'; |
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import castFunction from './_castFunction.js'; |
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import isArray from './isArray.js'; |
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/** |
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* Iterates over elements of `collection` and invokes `iteratee` for each element. |
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* The iteratee is invoked with three arguments: (value, index|key, collection). |
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* Iteratee functions may exit iteration early by explicitly returning `false`. |
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* |
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* **Note:** As with other "Collections" methods, objects with a "length" |
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* property are iterated like arrays. To avoid this behavior use `_.forIn` |
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* or `_.forOwn` for object iteration. |
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* |
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* @static |
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* @memberOf _ |
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* @since 0.1.0 |
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* @alias each |
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* @category Collection |
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* @param {Array|Object} collection The collection to iterate over. |
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* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
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* @returns {Array|Object} Returns `collection`. |
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* @see _.forEachRight |
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* @example |
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* |
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* _.forEach([1, 2], function(value) { |
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* console.log(value); |
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* }); |
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* // => Logs `1` then `2`. |
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* |
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* _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { |
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* console.log(key); |
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* }); |
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* // => Logs 'a' then 'b' (iteration order is not guaranteed). |
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*/ |
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function forEach(collection, iteratee) { |
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var func = isArray(collection) ? arrayEach : baseEach; |
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return func(collection, castFunction(iteratee)); |
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} |
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export default forEach;
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