Variable declarations get hoisted to the top of every function, but the value assignments stay where they are. So the second example is run like this:
var me = 1;
function findme () {
var me; // (typeof me === 'undefined') evaluates to true
if (me) { // evaluates to false, doesn't get executed
me = 100;
console.log(me);
}
console.log(me);
}
findme();