JavaScript
var friends = {bill : {firstName:"Bill",lastName:"Fu",number:33,address :["Street No1","asdf"]},bill2 : {firstName:"bill2",lastName:"Fu",number:33,address :["Street No1","asdf"]},steve : {firstName:"Steve",lastName:"Fu",number:33,address :["Street No1","asdf"]},bella : {firstName:"bill2",lastName:"Fu",number:33,address :["Street No1","asdf"]}}var list = function(obj){for(var prop in obj ){console.log(prop);}};list(friends);var search = function(name){for(var prop in friends ){if(friends.firstName === name){console.log("=============");console.log(prop); //billconsole.log("=============");console.log(friends); //bill{}console.log("=============");return friends;}}};search("Steve");
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