superminimal javascript templating

superminimal.js

String.prototype.render = function(data){
    
    return this.replace(
        /\{([^{}]*)\}/g,
        function(match, group){
            var value = data[group];
            if( typeof value === 'function' ) {
                return value.apply(data);
                
            } else if(typeof value === 'number' || typeof value === 'string') {
                return value;
                
            }
            
            return match;
        }
    );
};