Friends! Please explain me the differences .

Question

A_VARIABLE_NAME , a-variable-name , a variable name

Answer 1

a-variable-name will give an error because '-' is an operator and operators cannot be part of variable names. The last one gives an error because of the space, variables names cannot consist of spaces

Answer 2

only A_VARIABLE_NAME works well as a variable name 😁, the others will give syntax error

Answer 3

Thank u so much

Answer 4

Thz Fri But I wonder why the other two give error. Plz🤗