vanilla js query string parser

getQueryVariable.js

// https://css-tricks.com/snippets/javascript/get-url-variables/
// cleaned up a bit
function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");

  for (var i = 0; i < vars.length; i++) {
    var pair = vars[i].split("=");

    if (pair[0] === variable) {
      return pair[1];
    }
  }

  return(false);
}