Every time you visit for the FIRST TIME today... [Part 1]

Post a random function that you made. May be from any project you've done or make one impromptu.

Any QUALITY is allowed. No bullying!


function findrepeating(string){ //string=starting string
var hash = {};
hash[string]=true;
var count = 0;
for (;;){
count +=1;
var t = [];
for (var i=0;i<string.length;i++){
var c0 = (i>0) ? string.charAt(i-1) : "0";
var c1 = string.charAt(i);
var c2 = (i<string.length-1) ? string.charAt(i+1) : "0";
var s = c0+c1+c2;
if (grammar[s]){
t.push(grammar[s]);
} else {
t.push(c1);
}
}
string = t.join("");
if (hash[string]){
break;
}
hash[string]=true;
}
return count;
}