JSFiddle - React, Tailwind, and code Playground

HTML

<div id="buttonbar"></div>

JavaScript

var buttons = {
    'Save': function() {
        return false;
    },
    'Abort': function() {}
};

for(label in buttons) {
    $('#buttonbar').append('<button>' + label + '</button>');
    
    var callback = buttons[label];
    $('#buttonbar button:last-child').click(function() {
        //var result = callback();
        alert(callback);
    });
}