title: Split string on the first white space occurrence
body: <p>I didn't get an optimized regex that split me a String basing into the first white space occurrence:</p>
  
  <pre><code>var str="72 tocirah sneab";
  </code></pre>
  
  <p>I need to get:</p>
  
  <pre><code>[
      "72",
      "tocirah sneab",
  ]
  </code></pre>