var IsPlainObject = require('./IsPlainObject'); 
var Extend = function (){ 
var options, name, src, copy, copyIsArray, clone, target = arguments[0] || { 
}
, i = 1, length = _AN_Read_length('length', arguments), deep = false ; 
if (typeof target === 'boolean') { 
deep = target; 
target = arguments[1] || { 
}
; 
i = 2; 
} 
if (length === i) { 
target = this; 
--i; 
} 
for (; i < length; i++ ){ 
if ((options = arguments[i]) != null ) { 
for (name in options){ 
src = target[name]; 
copy = options[name]; 
if (target === copy) { 
continue ; 
} 
if (deep && copy && (IsPlainObject(copy) || (copyIsArray = Array.isArray(copy)))) { 
if (copyIsArray) { 
copyIsArray = false ; 
clone = src && Array.isArray(src)? src: [] ; 
} 
 else { 
clone = src && IsPlainObject(src)? src: { 
}
; 
} 
target[name] = Extend(deep, clone, copy); 
} 
 else if (copy !== undefined) { 
target[name] = copy; 
} 
} 
} 
} 
return target; 
} 
; 
module.exports = Extend;