JAVASCRIPT

Everything Be True

const truthCheck = (collection, pre) => 
	collection.every(elem => elem.hasOwnProperty(pre) && elem[pre]);

everything be true

function truthCheck(collection, pre) {
  // Create a counter to check how many are true.
  let counter = 0;
  // Check for each object
  for (let c in collection) {
    // If it is has property and value is truthy
    if (collection[c].hasOwnProperty(pre) && Boolean(collection[c][pre])) {
      counter++;
    }
  }
  // Outside the loop, check to see if we got true for all of them and return true or false
  return counter == collection.length;
}

truthCheck([{ name: "Quincy", role: "Founder", isBot: false }, { name: "Naomi", role: "", isBot: false }, { name: "Camperbot", role: "Bot", isBot: true }], "isBot");