title: Find duplicate values inside array of objects
body: <p>What is the best way in JavaScript to go over array of object and check if an certain value already exist in one of the property of the array objects?
  For example: I have array of objects as follow:
  [{name:"team1",members:3},{name:"bestteam",members:4}]
  Now I want to add a new object but I want to check that this object property "name" do not exist in the array before adding it</p>