JSFiddle - React, Tailwind, and code Playground

by gromer

HTML

<input id="c" type="checkbox" checked readonly /><button id="b">Click</button>

JavaScript

$('#b').click(function() {
    //alert($('#c').prop('checked'));
    alert($('#c').attr('readOnly'));
    //alert($('#c').attr('type'));
    
    if ($('#c').prop('checked') === true) {
        //alert("Checked");
    } else {
        //alert("Not checked");
    }
});


var c = document.getElementById('c');
alert(c.readOnly);