Function setup

packages/socket.io/client-dist/socket.io.js:2521–2809

* This is the common logic for both the Node.js and web browser * implementations of `debug()`.

(env)

   */

  function setup(env) {
    createDebug.debug = createDebug;
    createDebug["default"] = createDebug;
    createDebug.coerce = coerce;
    createDebug.disable = disable;
    createDebug.enable = enable;
    createDebug.enabled = enabled;
    createDebug.humanize = requireMs();
    createDebug.destroy = destroy;
    Object.keys(env).forEach(function (key) {
      createDebug[key] = env[key];
    });

    /**
    * The currently active debug mode names, and names to skip.
    */

    createDebug.names = [];
    createDebug.skips = [];

    /**
    * Map of special "%n" handling functions, for the debug "format" argument.
    *
    * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
    */
    createDebug.formatters = {};

    /**
    * Selects a color for a debug namespace
    * @param {String} namespace The namespace string for the debug instance to be colored
    * @return {Number|String} An ANSI color code for the given namespace
    * @api private
    */
    function selectColor(namespace) {
      var hash = 0;
      for (var i = 0; i < namespace.length; i++) {
        hash = (hash << 5) - hash + namespace.charCodeAt(i);
        hash |= 0; // Convert to 32bit integer
      }
      return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
    }
    createDebug.selectColor = selectColor;

    /**
    * Create a debugger with the given `namespace`.
    *
    * @param {String} namespace
    * @return {Function}
    * @api public
    */
    function createDebug(namespace) {
      var prevTime;
      var enableOverride = null;
      var namespacesCache;
      var enabledCache;
      function debug() {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];