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iOS Swift 2.0 Basics An Introduction to Swift Programming Variables

What is the function behind double quotes? Is it always required to write syntaxes or numbers within them?

In this video lecture, I noticed that numbers were written within double quotes or sometimes not used at all. Is there a reason why double quotes should be used? Would it reflect into the final product?

1 Answer

The reason quotes are used are to indicate that the thing inside the quotes is a string. For instance, of the number 4 is in quotes, it is a string. You can't add, subtract, etc. it with another number. Now if it wasn't in quotes, it actually is an integer value, which means you can ads it with other values and so forth. Hope this answers your question.

That was very helpful. Thank you, Bill.