When using semicolons in JavaScript matters

semicolons-matter.md

This fails in Firefox, Chrome, and maybe others.

Copy-and-paste all three lines (at the same time) into a debug console to try it for yourself.

function foo() { /* code goes here */ }
foo() // There is no semi-colon here. Add one to fix there error.
(function() { /* anonymouse function */ })() // bork!

Bork! TypeError: undefined is not a function