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40 lines
1.0 KiB
40 lines
1.0 KiB
var baseFor = require('./_baseFor'),
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castFunction = require('./_castFunction'),
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keysIn = require('./keysIn');
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/**
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* Iterates over own and inherited enumerable string keyed properties of an
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* object and invokes `iteratee` for each property. The iteratee is invoked
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* with three arguments: (value, key, object). Iteratee functions may exit
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* iteration early by explicitly returning `false`.
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*
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* @static
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* @memberOf _
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* @since 0.3.0
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* @category Object
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* @param {Object} object The object to iterate over.
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* @param {Function} [iteratee=_.identity] The function invoked per iteration.
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* @returns {Object} Returns `object`.
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* @see _.forInRight
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* @example
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*
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* function Foo() {
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* this.a = 1;
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* this.b = 2;
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* }
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*
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* Foo.prototype.c = 3;
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*
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* _.forIn(new Foo, function(value, key) {
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* console.log(key);
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* });
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* // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
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*/
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function forIn(object, iteratee) {
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return object == null
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? object
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: baseFor(object, castFunction(iteratee), keysIn);
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}
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module.exports = forIn;
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