Anonymous functions in javascript

10 July 2014

There are several way to execute an anonymous functions in javascript

(function(){ console.log('hi'); }());

(function(){ console.log('hi'); })();

var i = function(){ console.log('hi'); }();

true && function(){ console.log('hi'); }();

0, function(){ console.log('hi'); }();

!function(){ console.log('hi'); }(); // return true

~function(){ console.log('hi'); }(); // return -1

-function(){ console.log('hi'); }(); // return NaN

+function(){ console.log('hi'); }(); // return NaN

new function(){ console.log('hi'); } // return Object

Maybe you’ll never use that, but it is good to know what they do, especially when you dive into the source code by other developers.