10 examples of 'shouldcomponentupdate hooks' in JavaScript

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function callUpdateHooks (oldVNode: VNode, vNode: VNode): VNode {
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  const [updatedOldVNode, updatedVNode] = reduce(function ([oldVNode, vNode]: [VNode, VNode], module: Module): [VNode, VNode] {
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    return [vNode, module.update(oldVNode, vNode)]
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  }, [oldVNode, vNode], modules)
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  const update = !isUndef(updatedVNode.data) && updatedVNode.data.update || id
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  return update(updatedOldVNode, updatedVNode)
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}

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shouldComponentUpdate() {
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 return React.addons.PureRenderMixin.shouldComponentUpdate.apply(this, arguments);
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}

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function shouldComponentUpdate(componentType, updateComponentTypeArr) {
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  if (updateComponentTypeArr.includes(componentType)) {
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    return true;
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  } else {
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    return updateComponentTypeArr.includes(/* All */1);
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  }
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}

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update(component, data) {
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	const changes = getChanges(component);
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	if (data.forceUpdate || this.shouldUpdate(component, changes)) {
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		this.willUpdate_(component, changes);
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		this.patch(component);
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	}
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}

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export default function performElementUpdate (component) {
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  let oldVirtualElement = component.virtualElement
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  let oldDomNode = component.element
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  let newVirtualElement = component.render()
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  refsStack.push(component.refs)
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  let newDomNode = patch(component.element, diff(oldVirtualElement, newVirtualElement))
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  refsStack.pop()
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  component.virtualElement = newVirtualElement
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  if (newDomNode !== oldDomNode) {
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    throw new Error("etch does not support changing the root DOM node type of a component")
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  }
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}

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export function commitUpdate(
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  instance: Element,
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  preparedUpdateQueue: Array<[string, any]>,
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  type: any,
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  oldProps: any,
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  _: any,
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  { isSvg }: HostContext,
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): void {
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  DOMComponent.updateProps(instance, preparedUpdateQueue, oldProps, isSvg);
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}

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shouldComponentUpdate(nextProps) {
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  return this.view.onPropsUpdate(this.props, nextProps)
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}

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value: function shouldComponentUpdate(_ref) {
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  var media = _ref.media;
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  return this.props.media.currentTime !== media.currentTime;
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}

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value: function shouldComponentUpdate(_ref) {
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  var media = _ref.media;
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  return this.props.media.isFullscreen !== media.isFullscreen;
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}

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willUpdate(props: P) {}