find by id drill created by zempo1 - https://repl.it/@zempo1/find-by-id-drill

__replit_main__

// you can pass in `scratchData` to test out `findByid`
// your function
const scratchData = [
  { id: 22, foo: 'bar' },
  { id: 28, foo: 'bizz' },
  { id: 19, foo: 'bazz' },
];

function findById(items, idNum) {
  return items.find(item => item.id === idNum);
}

/* OR YOU COULD USE...

 for (let i = 0; i < items.length; i++) {
   if (items[i].id === idNum) {
     return items[i];
   }
 }

*/

function testIt() {
  const testData = [
    { id: 1, foo: 'bar' },
    { id: 2, foo: 'bizz' },
    { id: 3, bang: 'boo' },
  ];
  const result = findById(testData, 3);
  if (!(result && result !== null && typeof result === 'object')) {
    console.error('`findById` must return an object');
    return;
  }
  if (result.id !== 3) {
    console.error(
      'Asked for item with id of `3` but got back one with id of ' + result.id
    );
    return;
  }
  if (result.bang !== 'boo') {
    console.error(
      'Expected all key/value pairs from target object to be returned'
    );
    return;
  }
  console.log('SUCCESS: `findByid` is working');
}

testIt();

Starred for later study! JS | Checkpoint 12, find by id exercise