JSFiddle - React, Tailwind, and code Playground

JavaScript

function doWhatIsWanted(i) 
{
    return function()
    {
        alert(i);
        return false;
    }
}

var as = document.getElementsByTagName('a');

for ( var i = as.length; i--; )
{
    as[i].onclick = doWhatIsWanted(i);
}