what not to do

gistfile1.js

do {
    if (parts[pathIndex + 2]) {
        id = parts[pathIndex + 2];
        type = parts[pathIndex + 1];
    } else if (parts[pathIndex + 1]) {
        // there is no id
        type = parts[pathIndex + 1];
    }
    pathIndex += 2;
} while();