Code Folding changes in Xcode 9/10 [duplicate]

Updates in Xcode 10

Xcode 10 has increased support for code folding, including:

1. A new code folding ribbon showing all of the multi-line foldable blocks of code in the editor
2. A new style for folded code in the editor that allows you to edit lines with folded code
3. Support for folding any block of code enclosed in curly braces
4. Support for folding blocks of code from the folding ribbon, from structured selection, or from the

Menubar ► Editor ► Code Folding ► Fold menu item

Look at this snapshot:

Code folding was disabled in Xcode 9 beta 1, which is working now, in Xcode 9 Beta5 according to beta release note: Resolved in Xcode 9 beta 5 – IDE

Here is how:

1. Press and hold ⌘ (command) button in keyboard and move/hover mouse cursor on any (start or end) braces. It will automatically highlight, block area.
2. Keep (hold) ⌘ (command) button in pressed condition and click on highlighted area. It will enable quick menu popover window with Fold option.
3. Select Fold from menu list. It will fold your code and shows 3 dots, folding/covering entire block.
4. Now, to again unfold your code block, release ⌘ (command) button and click on 3 dots folding a block.

For easy understanding, look at this snapshot:

It's all keyboard short cuts are also working.

Fold                          ⌥ ⌘ ←      option + command + left arrowUnfold                        ⌥ ⌘ →      option + command + right arrowUnfold All                    ⌥ U        option + UFold Methods & Functions      ⌥ ⌘ ↑      option + command + up arrowUnfold Methods & Functions    ⌥ ⌘ ↓      option + command + down arrowFold Comment Blocks           ⌃ ⇧ ⌘ ↑    control + shift + command + upUnfold Comment Blocks         ⌃ ⇧ ⌘ ↓    control + shift + command + downFocus Follows Selection       ⌃ ⌥ ⌘ F    control + option + command + FFold All                      ⌘ ⌥ ⇧ ←    command + option + shift + leftUnfold All                    ⌘ ⌥ ⇧ →    command + option + shift + left

Code folding options from Xcode Menu:

Menubar ▶ Editor ▶ Code Folding ▶ "Here is list of code folding options"

Here is ref snapshot:

Same options from Xcode Short-cut list:

Menubar ▶ Xcode ▶ Preferences ▶ Key Bindings ▶ "Here is list of code folding short-keys"

It is stated in the release notes that it is not supported as of yet.

You can fold individual if statements also in Xcode 9 however it folds the entire if - (else) expression.

Put the cursor somewhere within the block and press ⌥⌘←

Unfolded:

Folded: