set checkbox checked html code example
Example 1: how to set checkbox checked
<input type="checkbox" name="vehicle3" value="Boat" checked>
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Example 2: fill checkbox javascript
// Check
document.getElementById("checkbox").checked = true;
// Uncheck
document.getElementById("checkbox").checked = false;
Example 3: checkbox value
<input type="checkbox" name="vehicle1" value="Bike">
The checkbox value is 'Bike'.