–JS
var myObj = { name: 'Pradeep', age: 28, state: 'delhi', address: [{room:'1bhk', type:'semi'}], address2: [{room:'2bhk', type:'none'}], address3: [{room:'3bhk', type:'full'}], }
for(var i=0; i<Object.keys(myObj).length; i++){ for(var x=0; x<myObj[Object.keys(myObj)[i]].length; x++){ if(myObj[Object.keys(myObj)[i]][x].room == '1bhk'){ console.log(myObj[Object.keys(myObj)[i]][x]) } } }