title: how to find specific information from string in NodeJS
body: <p>I have case how to find, how many
  people who have an age equal to or greater than 50 from this notation in nodeJS</p>
  <pre><code>&quot;key=IAfpK, age=58, key=WNVdi, age=64, key=jp9zt, age=47, key=0Sr4C, age=68, key=CGEqo, age=76, key=IxKVQ, age=79, key=eD221, age=29, key=XZbHV, age=32, key=k1SN5, age=88, key=4SCsU, age=65, key=q3kG6, age=33, key=MGQpf, age=13&quot;
  </code></pre>