build/web/c0.js
function(nextComponent, container) {
    ("production" !== process.env.NODE_ENV ? invariant(
      container && (
        (container.nodeType === ELEMENT_NODE_TYPE || container.nodeType === DOC_NODE_TYPE)
      ),
      '_registerComponent(...): Target container is not a DOM element.'
    ) : invariant(container && (
      (container.nodeType === ELEMENT_NODE_TYPE || container.nodeType === DOC_NODE_TYPE)
    )));

    ReactBrowserEventEmitter.ensureScrollValueMonitoring();

    var reactRootID = ReactMount.registerContainer(container);
    instancesByReactRootID[reactRootID] = nextComponent;
    return reactRootID;
  }
function(nextComponent, container) {
    ("production" !== process.env.NODE_ENV ? invariant(
      container && (
        (container.nodeType === ELEMENT_NODE_TYPE || container.nodeType === DOC_NODE_TYPE)
      ),
      '_registerComponent(...): Target container is not a DOM element.'
    ) : invariant(container && (
      (container.nodeType === ELEMENT_NODE_TYPE || container.nodeType === DOC_NODE_TYPE)
    )));

    ReactBrowserEventEmitter.ensureScrollValueMonitoring();

    var reactRootID = ReactMount.registerContainer(container);
    instancesByReactRootID[reactRootID] = nextComponent;
    return reactRootID;
  }
function ( nextComponent , container ) { ( "production" !== process . env . NODE_ENV ? invariant ( container && ( ( container . nodeType === ELEMENT_NODE_TYPE || container . nodeType === DOC_NODE_TYPE ) ) , '_registerComponent(...): Target container is not a DOM element.' ) : invariant ( container && ( ( container . nodeType === ELEMENT_NODE_TYPE || container . nodeType === DOC_NODE_TYPE ) ) ) ) ; ReactBrowserEventEmitter . ensureScrollValueMonitoring ( ) ; var reactRootID = ReactMount . registerContainer ( container ) ; instancesByReactRootID [ reactRootID ] = nextComponent ; return reactRootID ; }
Register a component into the instance map and starts scroll value
monitoring
@param {ReactComponent} nextComponent component instance to render
@param {DOMElement} container container to render into
@return {string} reactRoot ID prefix
Register a component into the instance map and starts scroll value monitoring