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# System prepended metadata

title: "Q:\_\_Is\_.length\_a property or a method?"

---

# Q:  Is .length a property or a method?

Ans length is a property.

.toUpperCase() is a function that requires the () because it's an action that you are performing.


# backticks or tilde

You already know that you can create strings with double quotes or single quotes, but as you already know, these strings do not support interpolation.