axe-core/lib/core/utils/extend-meta-data.js

Accessibility engine for automated Web UI testing

/*eslint no-empty: 0*/
/**
 * Extends metadata onto result object and executes any functions
 * @param  {Object} to   The target of the extend
 * @param  {Object} from Metadata to extend
 */
axe.utils.extendMetaData = function (to, from) {
	Object.assign(to, from);
	Object.keys(from).filter( prop => typeof from[prop] === 'function' )
		.forEach( prop => {
			to[prop] = null;
			try {
				to[prop] = from[prop](to);
			} catch(e) { }
		});
};