Function Statements, Definitions, Literals, and Expressions

AnonymousArgument.js

myArray.sort(function(a,b){
	// compare a and b
});

AnonymousStatement.js

(function(){
	// called!
})();

Comparison.js

function A(){}		// 14 characters
var A = function(){};	// 20 characters

Literal.js

var A = function(){
	// called
};
A();

NamedFunctionError.js

var Z = function Y(){
	console.log('Y/Z called');
}
Z(); // Y/Z called
Y(); // Error: Y is not defined

NamedFunctionReference.js

var once = 0;
var Z = function Y(arg){
	console.log('called:', arg);
	if(once) return;
	once = 1;
	Y('Y local'); // called: Y local
}
Z('Z'); // called: Z

SimpleStatement.js

function(){
	// never called.
}

Statement.js

function A(){
	// called!
}
A();

StrictError.js

"use strict";
if(true){
	function E(){
		console.log('true E')
	}
}
E();	// Error: in strict mode code, functions may be declared 
	//only at top level or immediately within another function

StrictWarning.js

function A(){}
var A = somethingElse; // strict warning: redeclaration of function A