object to url query string #snippet

qs.js

// convert objec to a query string
const qs = Object.keys(params)
    .map(key => `${key}=${params[key]}`)
    .join('&');

// OR
var queryString = Object.keys(params).map((key) => {
    return encodeURIComponent(key) + '=' + encodeURIComponent(params[key])
}).join('&');