serialize a javascript array to query string code example

Example 1: javascript object to params string

var queryString = Object.keys(params).map(key => key + '=' + params[key]).join('&');

Example 2: javascript convert object to querystring

const queryString = new URLSearchParams(props.location.search);
//or
var queryString = Object.keys(params).map(key => key + '=' + params[key]).join('&');
//Extracting query String key value pairs
for (let param of queryString.entries()) {
      console.log(param);
}