Parse URL and Append Param using Javascript

Sample

$(document).ready(function(){
    $('.locale-switch').on('click', function(){
        var $this = $(this);
        var locale = $this.data('locale');

        var url = append_param(window.location.href, 'locale', locale);
        window.location.href = url;
    });
});


function parse_url(url){
    url = url.replace(/\#/, '');

    var pattern = /(.+)\?(.*)/;
    var result = url.match(pattern);
    //console.log(result);
    if(result == null){
        var base_url = url;
        var search = '';
    }else{
        var base_url = result[1];
        var search = result[2];
    }

    var params = {};
    if(search != ''){
        var groups = search.split('&');
        for(var i = 0; i < groups.length; i++){
            var group = groups[i].split('=');
            params[group[0]] = group[1];
        }
    }
    
    var data = {
        base: base_url, 
        params: params
    }

    return data;
}

function append_param(url, param_name, param_value){
    var url_data = parse_url(url);
    var params = url_data.params;
    params[param_name] = param_value;
    var url = url_data.base + '?' + $.param(params);
    return url;
}

$(document).ready(function(){

$('.locale-switch').on('click', function(){

var $this = $(this);

var locale = $this.data('locale');

var url = append_param(window.location.href, 'locale', locale);

window.location.href = url;

});

function parse_url(url){

url = url.replace(/\#/, '');

var pattern = /(.+)\?(.*)/;

var result = url.match(pattern);

//console.log(result);

if(result == null){

var base_url = url;

var search = '';

}else{

var base_url = result[1];

var search = result[2];

}

var params = {};

if(search != ''){

var groups = search.split('&');

for(var i = 0; i < groups.length; i++){

var group = groups[i].split('=');

params[group[0]] = group[1];

}

var data = {

base: base_url,

params: params

}

return data;

}

function append_param(url, param_name, param_value){

var url_data = parse_url(url);

var params = url_data.params;

params[param_name] = param_value;

var url = url_data.base + '?' + $.param(params);

return url;

}

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Rex's Personal Site

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Parse URL and Append Param using Javascript