title: Find difference in array only using key using lodash
body: <p>How can I find all values in an array A - where the key is not in array B ( a bit like a SQL Not In ) .  I don't want to compare the whole array , just one property - but I do want to return all fields for the differences using lodash ( or simpler ) </p>
  
  <pre><code>const arrayA = [
    { sku:"1", name:"one"},
    { sku:"2", name:"two"}
  ]
  const arrayB = [
    { sku:"1", name:"One Product"},
    { sku:"2", name:"Two Product"},
    { sku:"3", name:"Three Product"}
  ]
  </code></pre>
  
  <p>The results should be :</p>
  
  <pre><code>{ sku:"3", name:"Three Product"}
  </code></pre>
  
  <p>Thank you for your time.</p>