javascript - JS Object strange behaviour when trying access Loopback related model query -

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i working loopback framework, doing web project. think question exposing here has less this, general javascript / node.js knowledge.

at 1 part of code, doing:

rolemapping.find({         where: {             principaltype: 'user',             principalid: context.principals[0].id         },         include: 'role'     }, function(err, roles){         console.log(roles[0]);         (var in roles)         {             if (roles[i].role.name === 'teamleader' &&                 roles[i].groupid === context.modelid)             {                 cb(null,true);             }else {                 cb(null,false);             }         } });

ok this, fails when trying compare roles[i].role.name. so, went logging roles[i] object contained.

    { groupid: 1,   id: 3,   principaltype: 'user',   principalid: 1,   roleid: 2,   role:     { id: 2,      name: 'teamleader',      description: 'the leader(s) of team',      created: null,      modified: null } }

ok, nothing wrong, still fails, tried print role property. , surprise:

{ [function]   update: [function],   destroy: [function],   create: [function],   build: [function],   _targetclass: 'role' }

so, role property seems sort of function? how been correctly printed before?

eventually, lost in frustration tried var role = json.parse(json.stringify(roles[i]));

and access every property of object normally, not clean nor normal.

this blew mind first time in years of js programming (sort of amateurish though), , pleased if clarify me. thanks

edit: seems specific framework, i'm changing title community.

i found issue 1425 links following docs:

with node.js api, need call tojson() convert returned model instance related items plain json object

please note relation properties […] points javascript function relation method.

so seems have use

for (var i=0; i<roles.length; i++) {     var x = roles[i].tojson();     cb(null, x.role.name === 'teamleader'              && x.groupid === context.modelid); }

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