JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" id='box' /> Test
<input type="button" value='Click me to check' id='bouton1' />
<input type="button" value='Click me to uncheck' id='bouton2' />

JavaScript

document.getElementById('bouton1').addEventListener('click', function(){
	document.getElementById('box').checked = "checked";
  console.log('Checkbox is checked');
});

document.getElementById('bouton2').addEventListener('click', function(){
	document.getElementById('box').removeAttribute('checked');
  console.log('Checkbox is unckecked');
});