const arrayOfStrings = ['nemo', 'dory', 'sam', 'lewt']; function findNemo(array) { let t0 = performance.now(); for(let i=0; i < array.length ; i++) { if (array[i] === 'nemo') console.log('Found NEMO'); } let t1 = performance.now(); console.log("Time taken to find nemo " + (t1-t0) + 'milliseconds'); } findNemo(arrayOfStrings);