Math.PIE() - a proposed ECMAScript 7 feature

math-pie.js

// in order for this to work, you need a yummly dev account.

function makePie (response) {
    var match = JSON.parse(response).matches[0],
        yourPie = ["you could bake a delicious ",
            match.recipeName,
            " using "];
    match.ingredients.forEach(function (ingredient) {
        yourPie.push("[" + ingredient + "]");
    });
    return yourPie.join('');
}

Math.PIE = function (ingredients) {
    ingredients = (ingredients instanceof Array ? ingredients.join('+') : ingredients) || "";
    var req = new XMLHttpRequest();
    req.onreadystatechange = function () {
        if (req.readyState == 4 && req.status == 200) {
            console.log(makePie(req.responseText));
        }
    };
    req.open("GET",
        "https://api.yummly.com/v1/api/recipes?_app_id=##YUMMLY_API_ID##&_app_key=##YUMMLY_API_KEY##&q=pie+"
        + ingredients,
        false);
    req.send();
};