jquery.truthy.js

$.if = function(){

    var truthy = 1;
    
    for (var i = 0; i < arguments.length; i++){
        if (!arguments[i]){
            truthy = 0;
            break;
        }
    }

    var run = function(fn){
        fn();
        return methods;
    };

    var fake = function(fn){
        return methods;
    };

    var allMethods = {
        1: {then: run, else: fake},
        0: {then: fake, else: run},
    };

    var methods = allMethods[truthy];

    return methods;
    
};

$.if(true).then(function(){
    console.log(true);
}).else(function(){
    console.log(false);
});

$.if(false).then(function(){
    console.log(true);
}).else(function(){
    console.log(false);
});