swift Memo

* Set to whole width with some Margin

ctrl-Drag -> to right : Menu - Select Trailing space to container Margin : Orange Lines
  //      -> to left : Select leading space to the container margin
  //      -> to Top  : Select Top spacing to Top Layout Guide
==> will see blue line : completed for vertical
Orange - Click on Document outline (bottom left) -> Select lable 0
Yellow circle in View Controller section -> resolve the issue : Update Frame, Constraints, Reset to Suggested Constraints, Apply to all views in container -> select Update Frame -> Fix Misplacement -> Orange will go away

* iOS Simulator - Hardware - Rotate

* special Characters - Edit - Emoji & Symbols

* Array
- var xxx: Array<Double> = Array<Double>()
- var XXX = Array<Double>()
XXX.append(displayValue)

* right button on a element in Storyboard screen - disconnect to the methods

* fit elements (objects) to screen

Make perfect Grid for all elements in the screen. -> select 2nd icon :o: : Add New Constraints - top,left,right,bottom all 8
-> in View Controller Scene : Click on yellow icon on right top -> click on any yellow triangle - Apply to all views .... -> done : Test - rotate it