javascript - looping through an object (tree) recursively -

is there way (in jquery or javascript) loop through each object , it's children , grandchildren , on?

if so... can read name?

example:

foo :{   bar:'',   child:{     grand:{       greatgrand: {         //and on       }     }   } } 

so loop should this...

loop start    if(nameof == 'child'){      //do    }    if(nameof == 'bar'){      //do    }    if(nameof =='grand'){      //do    } loop end 

you're looking for...in loop:

for (var key in foo) {     if (key == "child")         // something... }  

be aware for...in loops iterate on enumerable properties, including added prototype of object. avoid acting on these properties, can use hasownproperty method check see if property belongs object:

for (var key in foo) {     if (!foo.hasownproperty(key))         continue;       // skip property     if (key == "child")         // something... } 

performing loop recursively can simple writing recursive function:

// function handles arrays , objects function eachrecursive(obj) {     (var k in obj)     {         if (typeof obj[k] == "object" && obj[k] !== null)             eachrecursive(obj[k]);         else             // something...      } }