title: How to update value of a key of all objects from array of dictionary in swift3 without enumeration?
body: <p>How to update the value of a key of all objects from an array of a dictionary in swift3 without enumeration?</p>
  
  <p>E.g </p>
  
  <pre><code>let tags = [Dict("key1":true, "key2":1),Dict("key1":true,
  "key2":2),Dict("key1":false, "key2":3),Dict("key1":true, "key2":1),
  Dict("key1": false, "key2":1)] 
  </code></pre>
  
  <p>Now I want to change the value if <code>"key1":false</code> for all Dict objects.</p>
  
  <p>i.e I need output like this</p>
  
  <pre><code>tag : [Dict("key1": false, "key2":1),Dict("key1": false,
  "key2":2),Dict("key1":false, "key2":3),Dict("key1": false, "key2":1),
  Dict("key1": false, "key2":1)]
  </code></pre>
  
  <p>Can I achieve this without enumeration or iterations? and How?</p>