Some code examples have "Copy" button: https://api.arcade.academy/en/latest/examples/starting_template.html#starting-template https://api.arcade.academy/en/latest/examples/happy_face.html#happy-face etc.  Some are not: https://api.arcade.academy/en/latest/examples/drawing_text.html#drawing-text https://api.arcade.academy/en/latest/examples/bouncing_rectangle.html#bouncing-rectangle etc. 
Some code examples have "Copy" button:
https://api.arcade.academy/en/latest/examples/starting_template.html#starting-template
https://api.arcade.academy/en/latest/examples/happy_face.html#happy-face
etc.
Some are not:
https://api.arcade.academy/en/latest/examples/drawing_text.html#drawing-text
https://api.arcade.academy/en/latest/examples/bouncing_rectangle.html#bouncing-rectangle
etc.