Function monitorCodeUse

spreadsheet/code/as-react-livescript/main.js:14196–14201

* Provides open-source compatible instrumentation for monitoring certain API * uses before we're ready to issue a warning or refactor. It accepts an event * name which may only contain the characters [a-z0-9_] and an optional data * object with further information.

(eventName, data)

	 */

	function monitorCodeUse(eventName, data) {
	  ("production" !== process.env.NODE_ENV ? invariant(
	    eventName && !/[^a-z0-9_]/.test(eventName),
	    'You must provide an eventName using only the characters [a-z0-9_]'
	  ) : invariant(eventName && !/[^a-z0-9_]/.test(eventName)));
	}

	module.exports = monitorCodeUse;