Question

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JavaScript BlockStatement confusion

Why does {10 + '1'} + 10 equal 10?

I’m guessing the 1 doesn’t work because its in a string but not sure about the rest.

Answer 1

This:

{10 + '1'}

is a statement block. It’s not equal to 10; it has no value at all in fact the value “101”, a string (learn something useless every day :-). It is not, in particular, an object.

This:

+ 10

is equal to 10.

Try this:

({10 + '1'}) + 10

and you’ll see a difference.