Edit in JSFiddle

$(document).ready(function() {
  var members = [50, 10, 19, 22, 6, 74];
  $('#allElements').html(members.join("<br>"));
  memsecond = members.splice(0,4);
  $('#firstPart').html(memsecond.join("<br />"));
  $('#secondPart').html(members.join("<br />"));
});

<h3>Before splitting array elements </h3>
<div id="allElements"></div>
<br/>
<h3> First part of array </h3>
<div id="firstPart"></div>
<br/>
<h3> Second part of array </h3>
<div id="secondPart"></div>