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# Key Takeaways So Far

So far, you've learned how to format strings with the `format()` function.

Before moving on to string methods, let's review the key points card by card.

The `format()` function fills the passed values, in order, into the curly brace `{}` placeholders inside the string.

Key Takeaways So Far

When using the format() function, which symbol marks the place where a value goes inside a string?