[COLOR=#d4d4d4][FONT=Consolas][COLOR=#569cd6]const[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#4fc1ff]den[/COLOR][COLOR=#d4d4d4] = {[/COLOR][COLOR=#d4d4d4]    [/COLOR][COLOR=#ce9178]"afghanistan"[/COLOR][COLOR=#9cdcfe]:[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#ce9178]"Afganistan"[/COLOR][COLOR=#d4d4d4],[/COLOR][COLOR=#d4d4d4]    [/COLOR][COLOR=#ce9178]"albania"[/COLOR][COLOR=#9cdcfe]:[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#ce9178]"Albania"[/COLOR][COLOR=#d4d4d4],[/COLOR][COLOR=#d4d4d4]    [/COLOR][COLOR=#ce9178]"algeria"[/COLOR][COLOR=#9cdcfe]:[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#ce9178]"Algeria"[/COLOR][COLOR=#d4d4d4],[/COLOR][COLOR=#d4d4d4]    [/COLOR][COLOR=#ce9178]"andorra"[/COLOR][COLOR=#9cdcfe]:[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#ce9178]"Andorra"[/COLOR][COLOR=#d4d4d4],[/COLOR][COLOR=#d4d4d4]};[/COLOR]
[COLOR=#569cd6]const[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#4fc1ff]last[/COLOR][COLOR=#d4d4d4] = [/COLOR][COLOR=#4ec9b0]Object[/COLOR][COLOR=#d4d4d4].[/COLOR][COLOR=#dcdcaa]keys[/COLOR][COLOR=#d4d4d4]([/COLOR][COLOR=#4fc1ff]den[/COLOR][COLOR=#d4d4d4]);[/COLOR]
[COLOR=#4fc1ff]last[/COLOR][COLOR=#d4d4d4].[/COLOR][COLOR=#dcdcaa]forEach[/COLOR][COLOR=#d4d4d4]([/COLOR][COLOR=#9cdcfe]x[/COLOR][COLOR=#d4d4d4] [/COLOR][COLOR=#569cd6]=>[/COLOR][COLOR=#d4d4d4] {[/COLOR][COLOR=#9cdcfe]console[/COLOR][COLOR=#d4d4d4].[/COLOR][COLOR=#dcdcaa]log[/COLOR][COLOR=#d4d4d4]([/COLOR][COLOR=#9cdcfe]x[/COLOR][COLOR=#d4d4d4])});[/COLOR][/FONT][/COLOR]

basite indirip düşünürsek gelen json bu şekilde object.key ile diziye çevirip bu şekilde istediğiniz çıktıyı alabileceğinizi düşünüyorum.