title: Check if an array of objects have a key value using underscore
body: <p>How can check if an array of objects have a key value using underscore.</p>
  
  <p>Example:</p>
  
  <pre><code>var objects = [
    {id:1, name:'foo'},
    {id:2, name:'bar'}
  ]
  
  check(objects, {name: foo}) // true
  </code></pre>
  
  <p>I think it should be made using map:</p>
  
  <pre><code>_.map(objects, function(num, key){ console.log(num.name) });
  </code></pre>