An example of a while loop implementation using the async/await pattern. This works in the browser and Node.js. Get the "request" method here https://gist.github.com/lmzach09/38d291edb90f64d338132824a9de35ce#file-request-js

whileExample.js

const request = require('./request.js');

const array = [1, 2, 3, 4, 5];

(async function() {
    while (array.length > 0) {
        // Dequeue the first element in the array
        // Note that this modifies the array!
        const el = array.shift();
        const response = await request({
            method: 'GET',
            hostname: 'httpbin.org',
            path: '/get?myArg=' + el
        });

        const responseBody = JSON.parse(response.body);
        console.log(responseBody.args.myArg);
    }
})()