react-virtualized/playground/utils.js

React components for efficiently rendering large, scrollable lists and tabular data

function getUrlParams () {
  var search = window.location.search

  return search.length
    ? search
      .substr(1)
      .split('&')
      .reduce(
        function(reduced, value) {
          var matches = value.split('=')
          reduced[matches[0]] = matches[1]
          return reduced
        },
        {}
      )
    : {}
}

function getUrlParam (key) {
  return getUrlParams()[key]
}