我的函数链之演变

最易读版

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function chain(obj){     function fun(){         if (arguments.length == 0){             return fun.obj;         }         var methodName = arguments[0], methodArgs = [].slice.call(arguments,1);         fun.obj[methodName].apply(fun.obj,methodArgs);         return fun;     }     fun.obj = obj;     return fun; }

 

易读版

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function chain(obj){     return function(){         var Self = arguments.callee; Self.obj = obj;         if(arguments.length==0){             return Self.obj;         }           var methodName = arguments[0], methodArgs = [].slice.call(arguments,1);         Self.obj[methodName].apply(Self.obj,methodArgs);         return Self;     } }

 

精简版

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/**  * chain 精简版  * @param {Object} obj  */ function chain(obj) {     var slice = [].slice     return function() {         var Self = arguments.callee         var Self.obj = obj         if (arguments.length === 0) {             return Self.obj         }         Self.obj[arguments[0]].apply(Self.obj, slice.call(arguments, 1))         return Self     } }

 

调用

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chain(obj)     (method1,arg1)     (method2,arg2)     (method3,arg3)     ...