converse-built/node_modules/bootstrap.native/lib/utils-init.js

/* Native Javascript for Bootstrap | Initialize Data API
--------------------------------------------------------*/
var initializeDataAPI = function( constructor, collection ){
    for (var i=0, l=collection[length]; i<l; i++) {
      new constructor(collection[i]);
    }
  },
  initCallback = BSN.initCallback = function(lookUp){
    lookUp = lookUp || DOC;
    for (var i=0, l=supports[length]; i<l; i++) {
      initializeDataAPI( supports[i][1], lookUp[querySelectorAll] (supports[i][2]) );
    }
  };

// bulk initialize all components
DOC[body] ? initCallback() : on( DOC, 'DOMContentLoaded', function(){ initCallback(); } );