docs: started work on added component

Author: EngineerSmith

docs/components/component/index.md

@@ -26,7 +26,7 @@ The object you use to update the components on the web console. It is also known
 |`(Component).type`|The type of the component, or **"unknown"** if it isn't known|
 |`(Component).parentID`|The parent ID of the component, if the local thread knows it|
 |[`(Component).parent`](parent.md)|Get the parent component of this component|
-|[`(Component).back`](parent.md)|Syntax sugar: alias for [`(Component).parent`](parent.md)|
+|[`(Component).back`](back.md)|Syntax sugar: alias for [`(Component).parent`](parent.md)|
 |`(Component).isDead`|Has this component marked removed.|
 
 ## See Also

docs/components/component/parent.md

@@ -0,0 +1,25 @@
+# `(Component).parent`
+A field of [Component](index.md) that lets you grab the parent component table, if the component knows it's parent.
+
+!!! warning "Type"
+    This field can be `nil` in such cases where the local thread doesn't know the parent of this component, or it is a root component of type `Tab`.
+
+## Alias
+`(Component).back`
+:   This alias is to make chaining functions more readable.
+
+## Example
+```lua
+tab:newCard({ size = 5, title = "Info" })
+  :newContainer()
+    :addText({ text = "Hello World" })
+    :addText({ text = "I like Mousse!" })
+    .back
+  :newCardBody() -- Call on the `Card` component because of the `.back` call above
+    :addCardTitle({ text = "Card Title" })
+    :addCardText({ text = "Card Text" })
+    :addCardFooter({ text = "Card footer" })
+```
+
+## See Also
+- [Component](index.md)

mkdocs.yml

@@ -44,6 +44,9 @@ plugins:
   - search
   - mike:
       version_selector: true
+  - redirects:
+      redirect_maps:
+        'components/component/back.md': 'components/component/parent.md'
 
 extra:
   version:

proxy.lua

@@ -78,12 +78,14 @@ end
 local funcKeys = {
   parent = function(raw)
     loggingStack.push()
+    if not raw.parentID then return nil end
     local v = proxy.get(raw.parentID)
     loggingStack.pop()
     return v
   end,
   back = function(raw) -- Alias for parent
     loggingStack.push()
+    if not raw.parentID then return nil end
     local v = proxy.get(raw.parentID)
     loggingStack.pop()
     return v
@@ -203,6 +205,9 @@ proxy._registerLocalChild = function(parentID, childProxy)
 end
 
 proxy._unregisterLocalChild = function(parentID, childID)
+  if not parentID then
+    return
+  end
   local list = proxy.localChildren[parentID]
   if not list then return end
   for i = #list, 1, -1 do