Function Declarations and Expressions

gistfile1.js

/**
 * See http://benalman.com/news/2010/11/immediately-invoked-function-expression/ for a better explanation
 */
<script>
	function test() {
		console.log('function declaration that is called with test()');
	}
	test();
	(function test() {
		console.log('immediately invoked function declaration wrapped in brackets (turned into an expression)');
	})()
	var test = function() {
		console.log('immediately invoked function expression');
	}()
	var test = (function() {
		console.log('immediately invoked function expression wrapped in brackets for convention');
	}())
</script>