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Paula SimonFront End Web Development Techdegree Student 8,056 Points
How can I better understand when to use to.UpperCase vs to.LowerCase on conditional statements?
Sean Paulson5,406 Points
toLowerCase and toUpperCase just return the text to lower or upper case.
say for example you want to end a program if a user types "quit". Well that user could enter "Quit", "qUiT", QUIt" or any other input. So you want to force that input to be lower case because your string you are testing against is lower case.
If you are comparing your user input to a upper case string you would force the user input to be uper case with toUpperCase.
Thats why the example you gave works either way because no matter what the input is toUpperCase will force it to be upper case.