how to add query parameter to url js

javascript set query parameter

function updateQueryStringParameter(uri, key, value) {
  var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i");
  var separator = uri.indexOf('?') !== -1 ? "&" : "?";
  if (uri.match(re)) {
    return uri.replace(re, '$1' + key + "=" + value + '$2');
  }
  else {
    return uri + separator + key + "=" + value;
  }
}
//You can reload the url like so
 var newUrl=updateQueryStringParameter(window.location.href,"some_param","replaceValue");
 window.history.pushState("", "Page Title Here", newUrl);

Posted by: Guest on July-17-2019

function updateQueryStringParameter(uri, key, value) { var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i"); var separator = uri.indexOf('?') !== -1 ? "&" : "?"; if (uri.match(re)) { return uri.replace(re, '$1' + key + "=" + value + '$2'); } else { return uri + separator + key + "=" + value; } }

function update_query_parameters(key, val) { uri = window.location.href .replace(RegExp("([?&]"+key+"(?=[=&#]|$)[^#&]*|(?=#|$))"), "&"+key+"="+encodeURIComponent(val)) .replace(/^([^?&]+)&/, "$1?"); return uri; } // examples: the following may update ?page=4 in url and redirects to window.location.href = update_query_parameters('page', '4);

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