title: How to update vector's element array and its value while traversing on it
body: <p>I have an array vector  </p>
  
  <p><strong>Format</strong> like this</p>
  
  <pre><code>[[],[],[],[],[],[],[],[]] , [[],[],[],[],[],[],[],[]], etc...
  </code></pre>
  
  <p><strong>Example:</strong></p>
  
  <pre><code>[['admin'],['FD'],['PRS_12121200019'],['0103AR0040N'],['Supplier'],['ST01'],
    ['null'],['ST01'],['PRS_DOOROUTERLH'],['PRS_DOOROUTERLH2']],
  [['admin'],['FD'],['PRS_12121200019'],['0103AR0040N'],['Supplier'],['ST01'],
    ['null'],['ST01'],['PRS_DOOROUTERLH'],['PRS_DOOROUTERLH17']],
  </code></pre>
  
  <p>we can able to set, remove, repositioning index of a vector but how to update one value while traversing on vector.</p>
  
  <p>Example: if i want to update instead of <strong>Supplier</strong> into <strong>Inhouse</strong> which is the better way</p>