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							- (function (global, factory) {
 
- 	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
 
- 	typeof define === 'function' && define.amd ? define(factory) :
 
- 	(global = global || self, global.deepmerge = factory());
 
- }(this, function () { 'use strict';
 
- 	var isMergeableObject = function isMergeableObject(value) {
 
- 		return isNonNullObject(value)
 
- 			&& !isSpecial(value)
 
- 	};
 
- 	function isNonNullObject(value) {
 
- 		return !!value && typeof value === 'object'
 
- 	}
 
- 	function isSpecial(value) {
 
- 		var stringValue = Object.prototype.toString.call(value);
 
- 		return stringValue === '[object RegExp]'
 
- 			|| stringValue === '[object Date]'
 
- 			|| isReactElement(value)
 
- 	}
 
- 	// see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25
 
- 	var canUseSymbol = typeof Symbol === 'function' && Symbol.for;
 
- 	var REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;
 
- 	function isReactElement(value) {
 
- 		return value.$$typeof === REACT_ELEMENT_TYPE
 
- 	}
 
- 	function emptyTarget(val) {
 
- 		return Array.isArray(val) ? [] : {}
 
- 	}
 
- 	function cloneUnlessOtherwiseSpecified(value, options) {
 
- 		return (options.clone !== false && options.isMergeableObject(value))
 
- 			? deepmerge(emptyTarget(value), value, options)
 
- 			: value
 
- 	}
 
- 	function defaultArrayMerge(target, source, options) {
 
- 		return target.concat(source).map(function(element) {
 
- 			return cloneUnlessOtherwiseSpecified(element, options)
 
- 		})
 
- 	}
 
- 	function getMergeFunction(key, options) {
 
- 		if (!options.customMerge) {
 
- 			return deepmerge
 
- 		}
 
- 		var customMerge = options.customMerge(key);
 
- 		return typeof customMerge === 'function' ? customMerge : deepmerge
 
- 	}
 
- 	function getEnumerableOwnPropertySymbols(target) {
 
- 		return Object.getOwnPropertySymbols
 
- 			? Object.getOwnPropertySymbols(target).filter(function(symbol) {
 
- 				return Object.propertyIsEnumerable.call(target, symbol)
 
- 			})
 
- 			: []
 
- 	}
 
- 	function getKeys(target) {
 
- 		return Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))
 
- 	}
 
- 	function propertyIsOnObject(object, property) {
 
- 		try {
 
- 			return property in object
 
- 		} catch(_) {
 
- 			return false
 
- 		}
 
- 	}
 
- 	// Protects from prototype poisoning and unexpected merging up the prototype chain.
 
- 	function propertyIsUnsafe(target, key) {
 
- 		return propertyIsOnObject(target, key) // Properties are safe to merge if they don't exist in the target yet,
 
- 			&& !(Object.hasOwnProperty.call(target, key) // unsafe if they exist up the prototype chain,
 
- 				&& Object.propertyIsEnumerable.call(target, key)) // and also unsafe if they're nonenumerable.
 
- 	}
 
- 	function mergeObject(target, source, options) {
 
- 		var destination = {};
 
- 		if (options.isMergeableObject(target)) {
 
- 			getKeys(target).forEach(function(key) {
 
- 				destination[key] = cloneUnlessOtherwiseSpecified(target[key], options);
 
- 			});
 
- 		}
 
- 		getKeys(source).forEach(function(key) {
 
- 			if (propertyIsUnsafe(target, key)) {
 
- 				return
 
- 			}
 
- 			if (propertyIsOnObject(target, key) && options.isMergeableObject(source[key])) {
 
- 				destination[key] = getMergeFunction(key, options)(target[key], source[key], options);
 
- 			} else {
 
- 				destination[key] = cloneUnlessOtherwiseSpecified(source[key], options);
 
- 			}
 
- 		});
 
- 		return destination
 
- 	}
 
- 	function deepmerge(target, source, options) {
 
- 		options = options || {};
 
- 		options.arrayMerge = options.arrayMerge || defaultArrayMerge;
 
- 		options.isMergeableObject = options.isMergeableObject || isMergeableObject;
 
- 		// cloneUnlessOtherwiseSpecified is added to `options` so that custom arrayMerge()
 
- 		// implementations can use it. The caller may not replace it.
 
- 		options.cloneUnlessOtherwiseSpecified = cloneUnlessOtherwiseSpecified;
 
- 		var sourceIsArray = Array.isArray(source);
 
- 		var targetIsArray = Array.isArray(target);
 
- 		var sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;
 
- 		if (!sourceAndTargetTypesMatch) {
 
- 			return cloneUnlessOtherwiseSpecified(source, options)
 
- 		} else if (sourceIsArray) {
 
- 			return options.arrayMerge(target, source, options)
 
- 		} else {
 
- 			return mergeObject(target, source, options)
 
- 		}
 
- 	}
 
- 	deepmerge.all = function deepmergeAll(array, options) {
 
- 		if (!Array.isArray(array)) {
 
- 			throw new Error('first argument should be an array')
 
- 		}
 
- 		return array.reduce(function(prev, next) {
 
- 			return deepmerge(prev, next, options)
 
- 		}, {})
 
- 	};
 
- 	var deepmerge_1 = deepmerge;
 
- 	return deepmerge_1;
 
- }));
 
 
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