How to remove some parameters from an URL string?

Issue

I have this var storing a string that represents a URL full of parameters. I'm using AngularJS, and I'm not sure if there is any useful module (or maybe with plain JavaScript) to remove the unneeded URL parameters without having to use regex?

For example I need to remove &month=05 and also &year=2017 from:

var url = "at merge ?derivate=21&gear_type__in=13&engine=73&month=05&year=2017"

Solution

You can use this function that take 2 parameters: the param you are trying to remove and your source URL:

function removeParam(key, sourceURL) {
    var rtn = sourceURL.split("?")[0],
        param,
        params_arr = [],
        queryString = (sourceURL.indexOf("?") !== -1) ? sourceURL.split("?")[1] : "";
    if (queryString !== "") {
        params_arr = queryString.split("&");
        for (var i = params_arr.length - 1; i >= 0; i -= 1) {
            param = params_arr[i].split("=")[0];
            if (param === key) {
                params_arr.splice(i, 1);
            }
        }
        rtn = rtn + "?" + params_arr.join("&");
    }
    return rtn;
}

var url = "at merge ?derivate=21&gear_type__in=13&engine=73&month=05&year=2017";

var url2 = removeParam("month", url);
var url3 = removeParam("year", url2);

console.log(url3);

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Alternative solution with a regex

Answered By - Mistalis