JavaScript design pattern-Mixed meta class

There is a way to reuse code that does not require strict inheritance. If you want to use a function in more than one class, you can let these classes share the function in an extensible way. The practice is largely: first create a class that contains a variety of common methods, and then use it to augment other classes. This method is called the mixed-element class .

1 functionaugment (Receivingclass,givingclass) {2     if(Arguments.length > 2){3          for(varI= 2, len = arguments.length;i<len;i++){4Receivingclass.prototype[arguments[i]] =Givingclass.prototype[arguments[i]];5         }6}Else{7          for(varMethodNameinchGivingclass.prototype) {8             if(!Receivingclass.prototype[methodname]) {9Receivingclass.prototype[methodname] =Givingclass.prototype[methodname];Ten             } One         } A     } - } -  the functionAuthor (name,books) { -      This. Name =name; -      This. Books =Books; - } +Author.prototype.getBooks =function(){ -     return  This. Books; + } A  at varMiXin =function(){}; -Mixin.prototype = { -Serializefunction(){ -         varOutput = []; -          for(Keyinch  This){ -Output.push (key + ":" + This[key]); in         } -         returnOutput.join (","); to     } + } - augment (author,mixin); the varAuthor =NewAuthor ("Zap", "Reading notes"); *Console.log (Author.serialize ());

JavaScript design pattern-Mixed meta class