performance check of code created by arrbxr - https://repl.it/@arrbxr/performance-check-of-code

index.js

const {performance} = require('perf_hooks');

const nemo = ['nemo'];
const everyone = ['abhishek', 'pagla', 'ravi', 'raj', 'sita', 'gita', 'ram'];

const large = new Array(100000).fill('nemo');

function findNemo(array) {
    let t0 = performance.now();
    for (let i = 0; i < array.length; i++) {
        if (array[i] === 'nemo') {
            console.log('Find NEMO!');
        }
    }

    let t1 = performance.now();
    console.log('Call to find NEMO took ' + (t1 - t0) + ' milliseconds');
}

findNemo(large);