title: How to map array with array objects
body: <p>I have an array 1:</p>
  <pre><code>['a', 'b', 'c']
  </code></pre>
  <p>And array 2:</p>
  <pre><code>[{ a: 1, b: 2, c: 3, d: 5 }]
  </code></pre>
  <p>How to combine 2 arrays as below:</p>
  <pre><code>[{a: 1, b: 2: c: 3}]
  </code></pre>
  <p>The result only includes the items in first array.
  I want an optimal solution.</p>