const nemo = ['Ryan']; const everyone = ['Bruce', 'David', 'James', 'Matt', 'Joe', 'Alan', 'Chris', 'Ryan', 'Paul', 'Nick']; const large = new Array(10000000).fill('Ryan'); function findRyan(array) { let t0 = performance.now(); for (let i = 0; i < array.length; i++) { if (array[i] === 'nemo') { console.log('Found Ryan!'); } } let t1 = performance.now(); console.log('Call to find Ryan took ' + (t1-t0) + ' miliseconds'); } findRyan(large);