function() {
      if (this.__qooxdooVersion) {
        return this.__qooxdooVersion;
      }
      if (!this.__qooxdooVersion) {
         let lib = this.findLibrary("qx");
         if (lib) {
          this.__qooxdooVersion = lib.getVersion();  
         }
      }  
      return this.__qooxdooVersion;
    }
function() {
      if (this.__qooxdooVersion) {
        return this.__qooxdooVersion;
      }
      if (!this.__qooxdooVersion) {
         let lib = this.findLibrary("qx");
         if (lib) {
          this.__qooxdooVersion = lib.getVersion();  
         }
      }  
      return this.__qooxdooVersion;
    }
function ( ) { if ( this . __qooxdooVersion ) { return this . __qooxdooVersion ; } if ( ! this . __qooxdooVersion ) { let lib = this . findLibrary ( "qx" ) ; if ( lib ) { this . __qooxdooVersion = lib . getVersion ( ) ; } } return this . __qooxdooVersion ; }
Returns the version of Qooxdoo
@returns {String}
Returns the version of Qooxdoo