src/promissory-arbiter.js
function getFingerArrayPriority (fingerArray) {
    var item = getPointedFinger(fingerArray);
    return item !== SYMBOL_NOTHING ? getPriority(item) : Infinity;
  }
function getFingerArrayPriority (fingerArray) {
    var item = getPointedFinger(fingerArray);
    return item !== SYMBOL_NOTHING ? getPriority(item) : Infinity;
  }
function getFingerArrayPriority ( fingerArray ) { var item = getPointedFinger ( fingerArray ) ; return item !== SYMBOL_NOTHING ? getPriority ( item ) : Infinity ; }
Given a fingerArray, return the priority of current item
Given a fingerArray return the priority of current item