Number Demo

<input type="number" name="number" pattern="[0-9]*">

$("input[type='number']").number();

<input type="number" name="number" pattern="[0-9]*" disabled>

$("input[type='number']").number();

<input type="number" name="number" pattern="[0-9]*" min="0" max="20">

$("input[type='number']").number();

<input type="number" name="number" step="0.1">

$("input[type='number']").number({
  step: 0.1
});

<input type="number" name="number" pattern="[0-9]*">

$("input[type='number']").number({
  theme: ""
});