javascript - Jquery name space functional process is not understandable -

i searching across web jquery.namespace process. got answer in stack overflow example script..

jquery.namespace = function() {      var a=arguments, o=null, i, j, d;      (i=0; i<a.length; i=i+1) {          d=a[i].split(".");            o=window;          (j=0; j<d.length; j=j+1) {              o[d[j]]=o[d[j]] || {};             o=o[d[j]];               console.log(o);          }      }    // console.log(o); //object {}      return o; };  // definition jquery.namespace( 'jquery.debug' ); jquery.debug.test1 = function() {     alert( 'test1 function' ); }; jquery.debug.test2 = function() {     alert( 'test2 function' ); }; // usage jquery.debug.test1(); jquery.debug.test2(); 

it has 2 parts, once "jquery.namespace" - function , declaring new methods name space. unable understand "jquery.namespace" function here.. tried understand line line, couldn't process function here..

any 1 explain me function, how that's works? or other easy method make name spacing using jquery..

thanks in advance

the function taking arguments list of namespaces want created.

lets simplify takes 1 namespace

jquery.namespace = function(namespace) {     var o=null, j, d;     d=namespace.split(".");     o=window;     (j=0; j<d.length; j=j+1) {             o[d[j]]=o[d[j]] || {};             o=o[d[j]];          }     }     return o; }; 

the function simple. happening starting window recursively checking if objects have declared in our namespace exist. example take call jquery.namespace('foo.bar') function check see if window had attribute foo , if not create it. function check if window.foo had attribute bar , if not create it.

in end function create object linked window (a global variable) has relevant sub-objects. assigning functions , variables nested object rather directly window otherwise global variables.