cytoscape.js - cy.on('select') callback only once -

i have createtable function receives collection of nodes (or array of nodes), able draw table.

i switching cytoscape.js now, , don't know how have listener select event properly.

doing this:

cy.on('select', 'node', function(event){         window["selectednodes"] = cy.$('node:selected'); }); 

i have information need draw table, cannot call createtable function inside because call function several times (once per node selected). i've tried use cy.on , cy.once, without success.

here question:

how can have listener selection event, selected nodes , call (only once) createtable function ?

i can obtain selected node using this:

cy.elements('node:selected', console.log("my callback function")); 

but outside event listener (select / click) doesn't work need.

please, appreciated.

thank you.

debounce callback if multiple events come in 1 after another, batched:

 var timeout;  cy.on('select', 'node', function(event){    cleartimeout( timeout );    timeout = settimeout(function(){      window["selectednodes"] = cy.$('node:selected');       // , on...    }, 100); // may have adjust val   });