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What does the expression ${0} mean?

${0} gives you zero as a long, while plain 0 gives it to you as a string.

In Expression Evaluator:

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Produces

image description

What does the expression ${0} mean?

${0} gives you zero as a long, while plain 0 gives it to you as a string.

In Expression Evaluator:

image description

Produces

image descriptionQuestion is in the title!