I want to filter username & Mac id from one input field... if the string starts with '00' then put a colon after every two integers & characters & if it starts with alphabets did not put a colon after two characters...

var dynamicMask = new IMask(document.getElementById('user'), {
  mask: [{
      mask: '00:00:00:00:00:00'
    },
    {
      mask: /^\S*@?\S*$/
    }
  ]
})

<script src="https://unpkg.com/imask"></script>
<div class="form-group">
  <label>Username or Mac id</label>
  <input type="text" class="form-control" name="user" id="user" placeholder="Enter ..." />
</div>

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

CodePudding user response：

You can use combination of 0 and * to mask both numbers and letters

var dynamicMask = new IMask(document.getElementById('user'), {
    mask: [{
      mask: '0*:**:**:**:**:**'
    },
    {
      mask: /^\S*@?\S*$/
    }
  ]
})

<script src="https://unpkg.com/imask"></script>
<div class="form-group">
  <label>Username or Mac id</label>
  <input type="text" class="form-control" name="user" id="user" placeholder="Enter ..." />
</div>

<iframe name="sif2" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>