checkbox checked value code example

Example 1: how to set checkbox checked

<input type="checkbox" name="vehicle3" value="Boat" checked>

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Example 2: html checkbox

<!--
  You can group and post different values with the same "name".
  When posted to PHP, all checked boxes' values will appear under
  the "peripherals" element in `$_POST` array.
  E.g. if we check "screen" & "keyboard" and post the form then
  `$_POST` will contain `['peripherals' => ['screen', 'keyboard']]`
-->
<form>
  <input type="checkbox" id="periph1" name="peripherals" value="screen">
  <label for="periph1"> I have a Screen</label>
  <input type="checkbox" id="periph2" name="peripherals" value="keyboard">
  <label for="periph2"> I have a Keyboard</label>
  <input type="checkbox" id="periph3" name="peripherals" value="mouse">
  <label for="periph3"> I have a Mouse</label>
  <button type="submit">Send</button>
</form>

Example 3: how to make checkbox checked in html

<input type="checkbox" checked={props.completed} /> 

#for props completed is true/false , hence if completed is false then checkbox will not be clicked .
# if the checkbox is true it will be will be checked

Example 4: checkbox value

<input type="checkbox" name="vehicle1" value="Bike">

The checkbox value is 'Bike'.