[6a3a178] | 1 | var arrayEach = require('./_arrayEach'),
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| 2 | baseEach = require('./_baseEach'),
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| 3 | castFunction = require('./_castFunction'),
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| 4 | isArray = require('./isArray');
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| 5 |
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| 6 | /**
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| 7 | * Iterates over elements of `collection` and invokes `iteratee` for each element.
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| 8 | * The iteratee is invoked with three arguments: (value, index|key, collection).
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| 9 | * Iteratee functions may exit iteration early by explicitly returning `false`.
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| 10 | *
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| 11 | * **Note:** As with other "Collections" methods, objects with a "length"
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| 12 | * property are iterated like arrays. To avoid this behavior use `_.forIn`
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| 13 | * or `_.forOwn` for object iteration.
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| 14 | *
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| 15 | * @static
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| 16 | * @memberOf _
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| 17 | * @since 0.1.0
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| 18 | * @alias each
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| 19 | * @category Collection
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| 20 | * @param {Array|Object} collection The collection to iterate over.
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| 21 | * @param {Function} [iteratee=_.identity] The function invoked per iteration.
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| 22 | * @returns {Array|Object} Returns `collection`.
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| 23 | * @see _.forEachRight
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| 24 | * @example
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| 25 | *
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| 26 | * _.forEach([1, 2], function(value) {
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| 27 | * console.log(value);
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| 28 | * });
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| 29 | * // => Logs `1` then `2`.
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| 30 | *
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| 31 | * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
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| 32 | * console.log(key);
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| 33 | * });
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| 34 | * // => Logs 'a' then 'b' (iteration order is not guaranteed).
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| 35 | */
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| 36 | function forEach(collection, iteratee) {
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| 37 | var func = isArray(collection) ? arrayEach : baseEach;
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| 38 | return func(collection, castFunction(iteratee));
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| 39 | }
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| 40 |
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| 41 | module.exports = forEach;
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