Function makePrefixMap

code/new-context-api/public/app.js:5324–5334

* Generate a mapping of standard vendor prefixes using the defined style property and event name. * * @param {string} styleProp * @param {string} eventName * @returns {object}

(styleProp, eventName)

 * @returns {object}
 */
function makePrefixMap(styleProp, eventName) {
  var prefixes = {};

  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
  prefixes['Moz' + styleProp] = 'moz' + eventName;
  prefixes['ms' + styleProp] = 'MS' + eventName;
  prefixes['O' + styleProp] = 'o' + eventName.toLowerCase();

  return prefixes;
}

/**
 * A list of event names to a configurable list of vendor prefixes.