javascript - Accessing single field from object in array -

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i'm using meteor mongodb , can't seem figure out how access single field objects in object array.

my documents:

  {      "_id" : "p6c4cstb3chwajqpg",      "createdat" : isodate("2016-05-11t11:30:11.820z"),      "username" : "admin",      "contacts" : [           {             "when" : isodate("2016-05-11t11:30:32.350z"),             "who" : "4ybufbe9pbyjbkasy"          },           {             "when" : isodate("2016-05-25t11:52:49.745z"),             "who" : "z792keeybxyzyeakp"          },           {             "when" : isodate("2016-05-26t13:47:43.439z"),             "who" : "4ybufbe9pbyjbkasy"          },           {             "when" : isodate("2016-05-26t13:48:22.828z"),             "who" : "4ybufbe9pbyjbkasy"          }      ] }

i want check if userid in of objects, in who fields.

my server-side code:

 var me = meteor.userid();  var findme = meteor.users.findone(me);   if (_.include(findme.contacts, {who: 4ybufbe9pbyjbkasy})){         console.log("found in array");     }else{         console.log("not found in array");     } }

i have tried several different ways, came nothing.

when console.log(findme.contacts);, returns whole array should. when try console.log(findme.contacts.who);, returns undefined.

just need direction on how access field of object array. thanks!

looping through array see whether contains value done array.prototype.some:

var data = {      "_id" : "p6c4cstb3chwajqpg",      "createdat" : "2016-05-11t11:30:11.820z",      "username" : "admin",      "contacts" : [          {              "when" : "2016-05-11t11:30:32.350z",              "who" : "4ybufbe9pbyjbkasy"          },          {              "when" : "2016-05-25t11:52:49.745z",              "who" : "z792keeybxyzyeakp"          },          {              "when" : "2016-05-26t13:47:43.439z",              "who" : "4ybufbe9pbyjbkasy"          },          {              "when" : "2016-05-26t13:48:22.828z",              "who" : "4ybufbe9pbyjbkasy"          }      ]  };    var hascontact = function(contacts, id){      return contacts.some(function(contact){          return contact.who === id;      });  };    console.log(hascontact(data.contacts,'4ybufbe9pbyjbkasy'));  console.log(hascontact(data.contacts,'z792keeybxyzyeakp'));  console.log(hascontact(data.contacts,'asdfasdfasdfasdfa'));


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