JSFiddle - React, Tailwind, and code Playground
by alexbfree
CoffeeScript
seen = ['A','B','C']
queue = [ { 'id':1, 'zooId':'D' }, { 'id':2, 'zooId':'E' },{ 'id':4, 'zooId':'B' } ]
for subjID in seen
for i,q of queue
if subjID==q.zooId
queue.splice(i,1)
console.log queue