Function errorHandler has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

function errorHandler (component: Component<any, any>, error) {
  // if(!component) { throw error ; return }
  let boundary
  while (true) {
    const { getDerivedStateFromError } = (component as any).constructor

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Function mountVNode has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

export function mountVNode (vnode: VNode, isSvg?: boolean, parentContext?, parentComponent?) {
  if (vnode.isSvg) {
    isSvg = true
  } else if (vnode.type === 'svg') {
    isSvg = true

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Function f has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

async function f () {
  const response = await prompts({
    type: 'select',
    name: 'version',
    message: `What's the release version?`,

Function verifyLifycycleMethods has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    const verifyLifycycleMethods = TestComponent => {
      const proto = TestComponent.prototype
      const protoSpy = {}
      spies.forEach(s => {
        protoSpy[s] = sinon.spy(proto, s)

Function componentDidMount has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

      componentDidMount () {
        this.setState(
          {
            a: true
          },

Function mountVNode has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export function mountVNode (vnode: VNode, isSvg?: boolean, parentContext?, parentComponent?) {
  if (vnode.isSvg) {
    isSvg = true
  } else if (vnode.type === 'svg') {
    isSvg = true

Function unmount has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export function unmount (vnode, parentDom?) {
  if (isInvalid(vnode)) {
    return
  }
  const vtype = vnode.vtype

Function render has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

      render () {
        inst = this
        const { step } = this.state
        if (step === 0) {
          return null

Function update has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  update (vnode) {
    const data = getData(vnode)

    // Children must be updated first
    if (Array.isArray(data.children)) {

Function getPropertyValue has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

          ComputedStyle.prototype.getPropertyValue = function (name) {
            var
              el = this._,
              style = el.style,
              currentStyle = el.currentStyle,

Function createElement has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function createElement (
  vnode: VirtualNode | VirtualNode[],
  isSvg?: boolean,
  parentContext?,
  parentComponent?

Function patchNonKeyedChildren has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function patchNonKeyedChildren (
  parentDom: Element,
  lastChildren,
  nextChildren,
  context: object,

Function patchProps has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

function patchProps (
  domNode: Element,
  nextProps: Props,
  previousProps: Props,
  lastVnode: VNode,

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Function applyMixins has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

function applyMixins (Cl: any, mixins: Function[] | any[]) {
  for (const key in mixins) {
    if (mixins.hasOwnProperty(key)) {
      const mixin = mixins[key]

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Function attachEventToDocument has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function attachEventToDocument (d, eventName, delegatedRoots) {
  const eventHandler = (event) => {
    const items = delegatedRoots.items
    const count = items.size
    if (count > 0) {

Function findAllInRenderedTree has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function findAllInRenderedTree (
  tree: VirtualNode,
  test: (vnode: VirtualNode) => boolean
) {
  if (isValidElement(tree) || isComponent(tree) || isDOMComponent) {

Function commonEventLoop has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    function commonEventLoop(currentTarget, e, $handlers, synthetic) {
      for(var
        handler,
        continuePropagation,
        handlers = $handlers.slice(),

Function Monitoring has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

  (function() {
    var stats = new MemoryStats()
    stats.domElement.style.position = 'fixed'
    stats.domElement.style.right = '0px'
    stats.domElement.style.bottom = '0px'

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Function shallowEqual has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

export function shallowEqual (a, b, isProps?) {
  if (a == null || b == null) {
    return false
  }

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Function shallowEqual has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

export default function shallowEqual (obj1, obj2) {
  if (obj1 === null || obj2 === null) {
    return false
  }
  if (Object.is(obj1, obj2)) {

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