JSFiddle - React, Tailwind, and code Playground

JavaScript

var value = function (test) {
    if (test == 0) {
        return 'value is zero ';
    } else {
        return $.post('/echo/html/', {
            html: 'false ',
            delay: .5
        }, function (r1) {
            console.log('r1', r1);
            return 'something from post callback';
        })
            .done(function (r2) {
            console.log('r2', r2);
            return 'something from done callback';
        });
    }
}(1);

console.log(value);