title: How to delete an object in an array in lodash
body: <p>I have an array of objects and I need to delete few of the objects based on conditions. How can I achieve it using lodash map function? 
  Ex:</p>
  
  <pre><code>[{a: 1}, {a: 0}, {a: 9}, {a: -1}, {a: 'string'}, {a: 5}]
  </code></pre>
  
  <p>I need to delete </p>
  
  <pre><code>{a: 0}, {a: -1}, {a: 'string'}
  </code></pre>
  
  <p>How can I achieve it? </p>