Function mapIntoArray

dash/deps/react@18.2.0.js:1008–1125

(children, array, escapedPrefix, nameSoFar, callback)

  }

  function mapIntoArray(children, array, escapedPrefix, nameSoFar, callback) {
    var type = typeof children;

    if (type === 'undefined' || type === 'boolean') {
      // All of the above are perceived as null.
      children = null;
    }

    var invokeCallback = false;

    if (children === null) {
      invokeCallback = true;
    } else {
      switch (type) {
        case 'string':
        case 'number':
          invokeCallback = true;
          break;

        case 'object':
          switch (children.$$typeof) {
            case REACT_ELEMENT_TYPE:
            case REACT_PORTAL_TYPE:
              invokeCallback = true;
          }

      }
    }

    if (invokeCallback) {
      var _child = children;
      var mappedChild = callback(_child); // If it's the only child, treat the name as if it was wrapped in an array
      // so that it's consistent if the number of children grows:

      var childKey = nameSoFar === '' ? SEPARATOR + getElementKey(_child, 0) : nameSoFar;

      if (isArray(mappedChild)) {
        var escapedChildKey = '';

        if (childKey != null) {
          escapedChildKey = escapeUserProvidedKey(childKey) + '/';
        }

        mapIntoArray(mappedChild, array, escapedChildKey, '', function (c) {
          return c;
        });
      } else if (mappedChild != null) {
        if (isValidElement(mappedChild)) {
          {
            // The `if` statement here prevents auto-disabling of the safe
            // coercion ESLint rule, so we must manually disable it below.
            // $FlowFixMe Flow incorrectly thinks React.Portal doesn't have a key
            if (mappedChild.key && (!_child || _child.key !== mappedChild.key)) {
              checkKeyStringCoercion(mappedChild.key);
            }
          }

          mappedChild = cloneAndReplaceKey(mappedChild, // Keep both the (mapped) and old keys if they differ, just as