Question

Explain how you would define a variable named balance, assuming that it will only be accessed in a single function.

Answer 1

The ways to define a variable named balance, if only it can be accessed in a single function are:

First the variable name need to begin  with a letter or an underscore character (_).

Note that the variable name is one that cannot begin with a digit.

Then make sure that the  variable name can only have alpha-numeric characters and underscores ( a-z, A-Z , 0-9 , and _ )

Note also that  Variable names are the ones that are said to be case-sensitive (age, Age and AGE are said to be different variables)

How do you define a variable name?

The Rules for naming a variable is that  A variable name is one that need to have only have letters (that is uppercase and lowercase letters), digits and also an underscore. T

Note that the first letter of a variable can be letter or an underscore.

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