24 lines
		
	
	
		
			747 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
		
		
			
		
	
	
			24 lines
		
	
	
		
			747 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
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								/**
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								 * The base implementation of methods like `_.findKey` and `_.findLastKey`,
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								 * without support for iteratee shorthands, which iterates over `collection`
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								 * using `eachFunc`.
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								 *
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								 * @private
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								 * @param {Array|Object} collection The collection to inspect.
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								 * @param {Function} predicate The function invoked per iteration.
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								 * @param {Function} eachFunc The function to iterate over `collection`.
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								 * @returns {*} Returns the found element or its key, else `undefined`.
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								 */
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								function baseFindKey(collection, predicate, eachFunc) {
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								  var result;
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								  eachFunc(collection, function(value, key, collection) {
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								    if (predicate(value, key, collection)) {
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								      result = key;
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								      return false;
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								    }
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								  });
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								  return result;
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								}
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								module.exports = baseFindKey;
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