how to button enable or disable with javascript? code example

Example: javascript how to disable a button

//Using Javascript
//Disabling a html button

document.getElementById("Button").disabled = true;
//Enabling a html button

document.getElementById("Button").disabled = false;


//Using jQuery
//Disabling a html button

$('#Button').attr('disabled','disabled');
//Enabling a html button

$('#Button').removeAttr('disabled');