Function createElement

lib/assets/react-source/development/react.js:1119–1199

* Create and return a new ReactElement of the given type. * See https://reactjs.org/docs/react-api.html#createelement

(type, config, children)

	 */

	function createElement(type, config, children) {
	  var propName; // Reserved names are extracted

	  var props = {};
	  var key = null;
	  var ref = null;
	  var self = null;
	  var source = null;

	  if (config != null) {
	    if (hasValidRef(config)) {
	      ref = config.ref;

	      {
	        warnIfStringRefCannotBeAutoConverted(config);
	      }
	    }

	    if (hasValidKey(config)) {
	      key = '' + config.key;
	    }

	    self = config.__self === undefined ? null : config.__self;
	    source = config.__source === undefined ? null : config.__source; // Remaining properties are added to a new props object

	    for (propName in config) {
	      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
	        props[propName] = config[propName];
	      }
	    }
	  } // Children can be more than one argument, and those are transferred onto
	  // the newly allocated props object.


	  var childrenLength = arguments.length - 2;

	  if (childrenLength === 1) {
	    props.children = children;
	  } else if (childrenLength > 1) {
	    var childArray = Array(childrenLength);

	    for (var i = 0; i < childrenLength; i++) {
	      childArray[i] = arguments[i + 2];
	    }

	    {
	      if (Object.freeze) {
	        Object.freeze(childArray);
	      }
	    }

	    props.children = childArray;
	  } // Resolve default props


	  if (type && type.defaultProps) {
	    var defaultProps = type.defaultProps;