JSFiddle - React, Tailwind, and code Playground

by Fernando Leal

JavaScript

function formatQueryStringURLParamArray(key, array){
    var param = "";
    for(var item in array){
        if(param.length > 0)
            param += "&";
        param += key + "=" + item;
    }
    return param;
}

var myArray = [1,2,3,4];
console.log(formatQueryStringURLParamArray("key", myArray));
console.log(formatQueryStringURLParamArray("key[]", myArray));