gistfile1.js

// Screwing around with string interpolation

String.prototype.inter = function(r) {
    return this.replace(/\{([^}]+)\}/g, function() {
        return r[arguments[1]];
    });
}

$(document).ready(function() {
    var string = 'There are {num_kids} kids in the {room_name}.';
    alert(string.inter({
        num_kids: 42,
        room_name: 'living room'
    }));
});

// Will alert "There are 42 kids in the living room.";