nl_tokens: Add an event listener to a list of HTML elements and returns a remove listener function .
pl_tokens: function listenNodeList ( nodeList , type , callback ) { Array . prototype . forEach . call ( nodeList , function ( node ) { <mask> . addEventListener ( type , callback ) ; } ) ; return { destroy : function ( ) { Array . prototype . forEach . call ( nodeList , function ( node ) { node . removeEventListener ( type , callback ) ; } ) ; } } }