What does Instruction[0] mean?

[Yoo Song Won]

 

Just wondering what the following lines mean: 

 

 

and

 

 

Thank you in advance!

[79wjd]

Instruction[0] references the first character in the string 'Instruction' while Instruction[1:] references all characters except the first.

 

E.g.

Let instruction = 'hello'

Then instruction[0] == 'h' and instruction[1:] == 'ello'

[Yoo Song Won]

1 minute ago, 79wjd said:

Instruction[0] references the first character in the string 'Instruction' while Instruction[1:] references all characters except the first.

 

E.g.

Let instruction = 'hello'

Then instruction[0] == 'h' and instruction[1:] == 'ello'

Thank you!!!! Helps a lot!