why is it important to use periods why is periods used in variable names what is the proper use for periods and periods why use periods when naming variables why is it important to use periods for variable names renaming a variable is called what what is the difference between period and lower case? why do i use periods in my variable names should i use periods to separate variables why do you use periods in variable names why is it important to rename a variable why is my variable less than a colon or period how to make a variable name more useful why use periods in variable naming why is it important that we use periods in our variable name which variable should renamed why is it necessary to use periods in variable names? what is the logical use of periods and capital letters in variable names? why is it important to use periods what is the difference between a period and a variable name