JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"></script>

JavaScript

$(document).ready(function(){
    
    var colors = {colors : ['red','yellow','blue']};
    var colorjson = JSON.stringify(colors);
    alert(colorjson);
    
    /*
    $.ajax({
        type:'POST',
        url: '/echo/json/',
        cache: false,
        success: function(d) { alert(d.colors[0]);},
        error: function() { alert('boo');},
        data: { json : colorjson }
    });
    */

    $.post('/echo/json/', { json: colorjson }, function(d) { alert(d.colors[0,2]); });
    
    //you would do the same thing with $.getJSON(...), if it were supported by jsFiddle....
    //$.getJSON('/echo/json/', { json: colorjson }, function(d) { alert(d.colors[0]); });
    
});