Function deepEquals

packages/yjs-transform/src/object.ts:35–64

(node: InspectableObject, another: InspectableObject)

// Slates deep equality function: https://github.com/ianstormtaylor/slate/blob/68aff89e892fe15a16314398ff052ade6068900b/packages/slate/src/utils/deep-equal.ts#L13
// We have to match slates deepEquals behavior to merge insert deltas in the same way slate does.
export function deepEquals(node: InspectableObject, another: InspectableObject): boolean {
  // eslint-disable-next-line guard-for-in
  for (const key in node) {
    const a = node[key]
    const b = another[key]

    if (isPlainObject(a) && isPlainObject(b)) {
      if (!deepEquals(a, b)) {
        return false
      }
    } else if (Array.isArray(a) && Array.isArray(b)) {
      if (a.length !== b.length) return false
      for (let i = 0; i < a.length; i++) {
        if (a[i] !== b[i]) {
          return false
        }
      }
    } else if (a !== b) {
      return false
    }
  }

  for (const key in another) {
    if (node[key] === undefined && another[key] !== undefined) {
      return false
    }
  }

  return true
}

export function pick<TObj extends Record<string, any>, TKeys extends keyof TObj>(
  obj: TObj,