jstree select all node

JavaScript
 var data = $("#tree").jstree(true).get_json('#', { 'flat': true });
      $.each(data, function (i, val) {
          var node = $("#schema").jstree().get_node(val);
          if (node.original.type == type) {
              $("#tree").jstree("select_node", node.id); 
          }
      });
Source

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