html input float code example

Example 1: html input integer and positive

<input type="number" min="0" step="1" />

Example 2: input type that allows float number

<input type="number" step="0.01">

Example 3: html input size

Syntax
<input size="number">

Example
An HTML form with two input fields with a width of 50 and 4 characters:

<form action="/action_page.php">
  <label for="fname">First name:</label>
  <input type="text" id="fname" name="fname" size="50"><br><br>
  <label for="pin">PIN:</label>
  <input type="text" id="pin" name="pin" maxlength="4" size="4"><br><br>
  <input type="submit" value="Submit">
</form>

Example 4: how to write floating point numbers in html5 input

<form>
  <input type=number step=1 /> Step 1 (default)<br />
  <input type=number step=0.01 /> Step 0.01<br />
  <input type=number step=any /> Step any<br />
  <input type=range step=20 /> Step 20<br />
  <input type=datetime-local step=60 /> Step 60 (default)<br />
  <input type=datetime-local step=1 /> Step 1<br />
  <input type=datetime-local step=any /> Step any<br />
  <input type=datetime-local step=0.001 /> Step 0.001<br />
  <input type=datetime-local step=3600 /> Step 3600 (1 hour)<br />
  <input type=datetime-local step=86400 /> Step 86400 (1 day)<br />
  <input type=datetime-local step=70 /> Step 70 (1 min, 10 sec)<br />
</form>

Example 5: number field for float or integer form_with

f.number_field :amount, value: number_to_currency(f.object.amount.to_f, delimiter: '', unit: ''), step: :any