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Top 10 Examples of "react-is in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'react-is' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

const render = (reactEl, config, ShallowRender) => {
  if (!reactEl || typeof reactEl !== 'object') {
    return reactEl;
  }

  const isAlreadyMocked = Boolean(reactEl._mock);
  if (isAlreadyMocked) {
    reactEl._mock._render();
  }

  if (!isAlreadyMocked && ReactIs.isForwardRef(reactEl)) {
    const shallowRender = new ShallowRender(reactEl, config);

    return {
      ...shallowRender._rendered,
      _mock: shallowRender
    };
  }

  // When rendering modify the context value
  if (ReactIs.isContextProvider(reactEl) && reactEl.props.value) {
    reactEl.type._context._currentValue = reactEl.props.value;
  }

  if (!isAlreadyMocked && shouldBeRender(reactEl, config)) {
    const mock = config.mocks && config.mocks[reactEl.type.displayName || reactEl.type.name];
    const el = mock === true ? reactEl.type : mock || reactEl.type;
typeof element === 'function'
        ? ' Instead of passing a component class, make sure to instantiate ' +
          'it by passing it to React.createElement.'
        : '',
    );
    element = ((element: any): ReactElement);
    // Show a special message for host elements since it's a common case.
    invariant(
      typeof element.type !== 'string',
      'ReactShallowRenderer render(): Shallow rendering works only with custom ' +
        'components, not primitives (%s). Instead of calling `.render(el)` and ' +
        'inspecting the rendered output, look at `el.props` directly instead.',
      element.type,
    );
    invariant(
      isForwardRef(element) ||
        (typeof element.type === 'function' || isMemo(element)),
      'ReactShallowRenderer render(): Shallow rendering works only with custom ' +
        'components, but the provided element type was `%s`.',
      Array.isArray(element.type)
        ? 'array'
        : element.type === null
          ? 'null'
          : typeof element.type,
    );

    if (this._rendering) {
      return;
    }
    if (this._element != null && this._element.type !== element.type) {
      this._reset();
    }
typeof element === 'function'
        ? ' Instead of passing a component class, make sure to instantiate ' +
          'it by passing it to React.createElement.'
        : '',
    );
    element = ((element: any): ReactElement);
    // Show a special message for host elements since it's a common case.
    invariant(
      typeof element.type !== 'string',
      'ReactShallowRenderer render(): Shallow rendering works only with custom ' +
        'components, not primitives (%s). Instead of calling `.render(el)` and ' +
        'inspecting the rendered output, look at `el.props` directly instead.',
      element.type,
    );
    invariant(
      isForwardRef(element) ||
        (typeof element.type === 'function' || isMemo(element)),
      'ReactShallowRenderer render(): Shallow rendering works only with custom ' +
        'components, but the provided element type was `%s`.',
      Array.isArray(element.type)
        ? 'array'
        : element.type === null
          ? 'null'
          : typeof element.type,
    );

    if (this._rendering) {
      return;
    }
    if (this._element != null && this._element.type !== element.type) {
      this._reset();
    }
if (!(reactIs.isForwardRef(element) || typeof element.type === 'function' || reactIs.isMemo(element.type))) {
        {
          throw ReactError(Error("ReactShallowRenderer render(): Shallow rendering works only with custom components, but the provided element type was `" + (Array.isArray(element.type) ? 'array' : element.type === null ? 'null' : typeof element.type) + "`."));
        }
      }
    })();

    if (this._rendering) {
      return;
    }

    if (this._element != null && this._element.type !== element.type) {
      this._reset();
    }

    var elementType = reactIs.isMemo(element.type) ? element.type.type : element.type;
    var previousElement = this._element;
    this._rendering = true;
    this._element = element;
    this._context = getMaskedContext(elementType.contextTypes, context); // Inner memo component props aren't currently validated in createElement.

    if (reactIs.isMemo(element.type) && elementType.propTypes) {
      currentlyValidatingElement = element;
      checkPropTypes(elementType.propTypes, element.props, 'prop', getComponentName(elementType), getStackAddendum);
    }

    if (this._instance) {
      this._updateClassComponent(elementType, element, this._context);
    } else {
      if (shouldConstruct(elementType)) {
        this._instance = new elementType(element.props, this._context, this._updater);
'components, but the provided element type was `%s`.',
      Array.isArray(element.type)
        ? 'array'
        : element.type === null
          ? 'null'
          : typeof element.type,
    );

    if (this._rendering) {
      return;
    }
    if (this._element != null && this._element.type !== element.type) {
      this._reset();
    }

    const elementType = isMemo(element) ? element.type.type : element.type;
    const previousElement = this._element;

    this._rendering = true;
    this._element = element;
    this._context = getMaskedContext(elementType.contextTypes, context);

    // Inner memo component props aren't currently validated in createElement.
    if (isMemo(element) && elementType.propTypes) {
      currentlyValidatingElement = element;
      checkPropTypes(
        elementType.propTypes,
        element.props,
        'prop',
        getComponentName(elementType),
        getStackAddendum,
      );
currentlyValidatingElement = element;
          checkPropTypes(
            elementType.contextTypes,
            this._context,
            'context',
            getName(elementType, this._instance),
            getStackAddendum,
          );

          currentlyValidatingElement = null;
        }

        this._mountClassComponent(elementType, element, this._context);
      } else {
        let shouldRender = true;
        if (isMemo(element) && previousElement !== null) {
          // This is a Memo component that is being re-rendered.
          const compare = element.type.compare || shallowEqual;
          if (compare(previousElement.props, element.props)) {
            shouldRender = false;
          }
        }
        if (shouldRender) {
          const prevDispatcher = ReactCurrentDispatcher.current;
          ReactCurrentDispatcher.current = this._dispatcher;
          try {
            // elementType could still be a ForwardRef if it was
            // nested inside Memo.
            if (elementType.$$typeof === ForwardRef) {
              invariant(
                typeof elementType.render === 'function',
                'forwardRef requires a render function but was given %s.',
if (this._rendering) {
      return;
    }
    if (this._element != null && this._element.type !== element.type) {
      this._reset();
    }

    const elementType = isMemo(element) ? element.type.type : element.type;
    const previousElement = this._element;

    this._rendering = true;
    this._element = element;
    this._context = getMaskedContext(elementType.contextTypes, context);

    // Inner memo component props aren't currently validated in createElement.
    if (isMemo(element) && elementType.propTypes) {
      currentlyValidatingElement = element;
      checkPropTypes(
        elementType.propTypes,
        element.props,
        'prop',
        getComponentName(elementType),
        getStackAddendum,
      );
    }

    if (this._instance) {
      this._updateClassComponent(elementType, element, this._context);
    } else {
      if (shouldConstruct(elementType)) {
        this._instance = new elementType(
          element.props,
currentlyValidatingElement = element;
          checkPropTypes(
            elementType.contextTypes,
            this._context,
            'context',
            getName(elementType, this._instance),
            getStackAddendum,
          );

          currentlyValidatingElement = null;
        }

        this._mountClassComponent(elementType, element, this._context);
      } else {
        let shouldRender = true;
        if (isMemo(element) && previousElement !== null) {
          // This is a Memo component that is being re-rendered.
          const compare = element.type.compare || shallowEqual;
          if (compare(previousElement.props, element.props)) {
            shouldRender = false;
          }
        }
        if (shouldRender) {
          const prevDispatcher = ReactCurrentDispatcher.current;
          ReactCurrentDispatcher.current = this._dispatcher;
          try {
            // elementType could still be a ForwardRef if it was
            // nested inside Memo.
            if (elementType.$$typeof === ForwardRef) {
              invariant(
                typeof elementType.render === 'function',
                'forwardRef requires a render function but was given %s.',
const isAlreadyMocked = Boolean(reactEl._mock);
  if (isAlreadyMocked) {
    reactEl._mock._render();
  }

  if (!isAlreadyMocked && ReactIs.isForwardRef(reactEl)) {
    const shallowRender = new ShallowRender(reactEl, config);

    return {
      ...shallowRender._rendered,
      _mock: shallowRender
    };
  }

  // When rendering modify the context value
  if (ReactIs.isContextProvider(reactEl) && reactEl.props.value) {
    reactEl.type._context._currentValue = reactEl.props.value;
  }

  if (!isAlreadyMocked && shouldBeRender(reactEl, config)) {
    const mock = config.mocks && config.mocks[reactEl.type.displayName || reactEl.type.name];
    const el = mock === true ? reactEl.type : mock || reactEl.type;

    const shallowRender = new ShallowRender(
      React.createElement(
        el,
        reactEl.props,
        reactEl.props && reactEl.props.children
      ),
      config
    );
// This is a Memo component that is being re-rendered.
          var compare = element.type.compare || shallowEqual;

          if (compare(previousElement.props, element.props)) {
            shouldRender = false;
          }
        }

        if (shouldRender) {
          var prevDispatcher = ReactCurrentDispatcher.current;
          ReactCurrentDispatcher.current = this._dispatcher;

          try {
            // elementType could still be a ForwardRef if it was
            // nested inside Memo.
            if (elementType.$$typeof === reactIs.ForwardRef) {
              (function () {
                if (!(typeof elementType.render === 'function')) {
                  {
                    throw ReactError(Error("forwardRef requires a render function but was given " + typeof elementType.render + "."));
                  }
                }
              })();

              this._rendered = elementType.render.call(undefined, element.props, element.ref);
            } else {
              this._rendered = elementType(element.props, this._context);
            }
          } finally {
            ReactCurrentDispatcher.current = prevDispatcher;
          }

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